Writing data from a SNAP PAC controller using an FTP communication handle results in an empty destination file Knowledge Base - KB91391 - Published: 4/14/2026 Writing data from a SNAP PAC controller to a new destination file using an FTP communication handle may result in an empty file.Writing data from a SNAP PAC controller to a new destination file using an FTP communication handle may result in an empty file. <less Calculate & Set Analog Offset and Calculate & Set Analog Gain commands return 0.0 for groov I/O or groov RIO channels Knowledge Base - KB91448 - Published: 4/14/2026 When calibrating analog channels on groov I/O or groov RIO modules using the Calculate & Set Analog Offset and Calculate & Set Analog Gain commands, the commands return a value of 0.0 instead of the required value.When calibrating analog channels on groov I/O or groov RIO modules using the Calculate & Set Analog Offset and Calculate & Set Analog Gain commands, the commands return a value of 0.0 instead of the required value. <less Multiple UDP connection attempts with invalid connect strings may reset SNAP PAC controller Knowledge Base - KB91425 - Published: 4/14/2026 If a strategy uses the Open Outgoing Communication command multiple times with improperly formatted UDP connect strings, the affected controller may reset.If a strategy uses the Open Outgoing Communication command multiple times with improperly formatted UDP connect strings, the affected controller may reset. <less Reading string data from a microSD card in a SNAP-PAC-R1 (GEN2) to a string table may be extremely slow Knowledge Base - KB91373 - Published: 4/10/2026 <less SSL certificates created with newer versions of OpenSSL may fail to load on SNAP PAC controllers Knowledge Base - KB90687 - Published: 4/10/2026 SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers.SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers. <less A groov RIO with RSTP enabled may lose Ethernet connectivity on a network that has BPDU Guard enabled Knowledge Base - KB91443 - Published: 4/1/2026 RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled.RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled. <less Restoring a groov RIO in Independent Port Mode may fail if using a pre-4.1.0 firmware backup file that includes Firewall settings Knowledge Base - KB91439 - Published: 4/1/2026 If restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore...moreIf restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore failure if Firewall settings are included in the backup file. The restore fails during the validation of the backup file. <less Node-RED on groov devices running pre-4.0 firmware may encounter memory leaks and restarts when accessing groov devices running 4.1.0 firmware with new web server certificates Knowledge Base - KB91418 - Published: 4/1/2026 When groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly...moreWhen groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly restart or experience memory leaks. This occurs when using Opto 22 nodes (node-red-contrib-pac, node-red-contrib-groov, and node-red-contrib-groov-io) to access data from the groov devices running firmware 4.1.0 or higher. <less A Node-RED Dashboard UI-only user can't access the Node-RED dashboard Knowledge Base - KB91428 - Published: 4/1/2026 If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard.If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard. <less groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Calculate & Set Analog Offset and Calculate & Set Analog Gain commands return 0.0 for groov I/O or groov RIO channels Knowledge Base - KB91448 - Published: 4/14/2026 When calibrating analog channels on groov I/O or groov RIO modules using the Calculate & Set Analog Offset and Calculate & Set Analog Gain commands, the commands return a value of 0.0 instead of the required value.When calibrating analog channels on groov I/O or groov RIO modules using the Calculate & Set Analog Offset and Calculate & Set Analog Gain commands, the commands return a value of 0.0 instead of the required value. <less Multiple UDP connection attempts with invalid connect strings may reset SNAP PAC controller Knowledge Base - KB91425 - Published: 4/14/2026 If a strategy uses the Open Outgoing Communication command multiple times with improperly formatted UDP connect strings, the affected controller may reset.If a strategy uses the Open Outgoing Communication command multiple times with improperly formatted UDP connect strings, the affected controller may reset. <less Reading string data from a microSD card in a SNAP-PAC-R1 (GEN2) to a string table may be extremely slow Knowledge Base - KB91373 - Published: 4/10/2026 <less SSL certificates created with newer versions of OpenSSL may fail to load on SNAP PAC controllers Knowledge Base - KB90687 - Published: 4/10/2026 SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers.SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers. <less A groov RIO with RSTP enabled may lose Ethernet connectivity on a network that has BPDU Guard enabled Knowledge Base - KB91443 - Published: 4/1/2026 RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled.RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled. <less Restoring a groov RIO in Independent Port Mode may fail if using a pre-4.1.0 firmware backup file that includes Firewall settings Knowledge Base - KB91439 - Published: 4/1/2026 If restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore...moreIf restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore failure if Firewall settings are included in the backup file. The restore fails during the validation of the backup file. <less Node-RED on groov devices running pre-4.0 firmware may encounter memory leaks and restarts when accessing groov devices running 4.1.0 firmware with new web server certificates Knowledge Base - KB91418 - Published: 4/1/2026 When groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly...moreWhen groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly restart or experience memory leaks. This occurs when using Opto 22 nodes (node-red-contrib-pac, node-red-contrib-groov, and node-red-contrib-groov-io) to access data from the groov devices running firmware 4.1.0 or higher. <less A Node-RED Dashboard UI-only user can't access the Node-RED dashboard Knowledge Base - KB91428 - Published: 4/1/2026 If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard.If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard. <less groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Multiple UDP connection attempts with invalid connect strings may reset SNAP PAC controller Knowledge Base - KB91425 - Published: 4/14/2026 If a strategy uses the Open Outgoing Communication command multiple times with improperly formatted UDP connect strings, the affected controller may reset.If a strategy uses the Open Outgoing Communication command multiple times with improperly formatted UDP connect strings, the affected controller may reset. <less Reading string data from a microSD card in a SNAP-PAC-R1 (GEN2) to a string table may be extremely slow Knowledge Base - KB91373 - Published: 4/10/2026 <less SSL certificates created with newer versions of OpenSSL may fail to load on SNAP PAC controllers Knowledge Base - KB90687 - Published: 4/10/2026 SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers.SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers. <less A groov RIO with RSTP enabled may lose Ethernet connectivity on a network that has BPDU Guard enabled Knowledge Base - KB91443 - Published: 4/1/2026 RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled.RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled. <less Restoring a groov RIO in Independent Port Mode may fail if using a pre-4.1.0 firmware backup file that includes Firewall settings Knowledge Base - KB91439 - Published: 4/1/2026 If restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore...moreIf restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore failure if Firewall settings are included in the backup file. The restore fails during the validation of the backup file. <less Node-RED on groov devices running pre-4.0 firmware may encounter memory leaks and restarts when accessing groov devices running 4.1.0 firmware with new web server certificates Knowledge Base - KB91418 - Published: 4/1/2026 When groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly...moreWhen groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly restart or experience memory leaks. This occurs when using Opto 22 nodes (node-red-contrib-pac, node-red-contrib-groov, and node-red-contrib-groov-io) to access data from the groov devices running firmware 4.1.0 or higher. <less A Node-RED Dashboard UI-only user can't access the Node-RED dashboard Knowledge Base - KB91428 - Published: 4/1/2026 If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard.If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard. <less groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Reading string data from a microSD card in a SNAP-PAC-R1 (GEN2) to a string table may be extremely slow Knowledge Base - KB91373 - Published: 4/10/2026 <less SSL certificates created with newer versions of OpenSSL may fail to load on SNAP PAC controllers Knowledge Base - KB90687 - Published: 4/10/2026 SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers.SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers. <less A groov RIO with RSTP enabled may lose Ethernet connectivity on a network that has BPDU Guard enabled Knowledge Base - KB91443 - Published: 4/1/2026 RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled.RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled. <less Restoring a groov RIO in Independent Port Mode may fail if using a pre-4.1.0 firmware backup file that includes Firewall settings Knowledge Base - KB91439 - Published: 4/1/2026 If restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore...moreIf restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore failure if Firewall settings are included in the backup file. The restore fails during the validation of the backup file. <less Node-RED on groov devices running pre-4.0 firmware may encounter memory leaks and restarts when accessing groov devices running 4.1.0 firmware with new web server certificates Knowledge Base - KB91418 - Published: 4/1/2026 When groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly...moreWhen groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly restart or experience memory leaks. This occurs when using Opto 22 nodes (node-red-contrib-pac, node-red-contrib-groov, and node-red-contrib-groov-io) to access data from the groov devices running firmware 4.1.0 or higher. <less A Node-RED Dashboard UI-only user can't access the Node-RED dashboard Knowledge Base - KB91428 - Published: 4/1/2026 If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard.If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard. <less groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
SSL certificates created with newer versions of OpenSSL may fail to load on SNAP PAC controllers Knowledge Base - KB90687 - Published: 4/10/2026 SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers.SSL certificates created with newer versions of OpenSSL (3.0 or newer) may fail to load on SNAP PAC controllers. <less A groov RIO with RSTP enabled may lose Ethernet connectivity on a network that has BPDU Guard enabled Knowledge Base - KB91443 - Published: 4/1/2026 RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled.RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled. <less Restoring a groov RIO in Independent Port Mode may fail if using a pre-4.1.0 firmware backup file that includes Firewall settings Knowledge Base - KB91439 - Published: 4/1/2026 If restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore...moreIf restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore failure if Firewall settings are included in the backup file. The restore fails during the validation of the backup file. <less Node-RED on groov devices running pre-4.0 firmware may encounter memory leaks and restarts when accessing groov devices running 4.1.0 firmware with new web server certificates Knowledge Base - KB91418 - Published: 4/1/2026 When groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly...moreWhen groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly restart or experience memory leaks. This occurs when using Opto 22 nodes (node-red-contrib-pac, node-red-contrib-groov, and node-red-contrib-groov-io) to access data from the groov devices running firmware 4.1.0 or higher. <less A Node-RED Dashboard UI-only user can't access the Node-RED dashboard Knowledge Base - KB91428 - Published: 4/1/2026 If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard.If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard. <less groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
A groov RIO with RSTP enabled may lose Ethernet connectivity on a network that has BPDU Guard enabled Knowledge Base - KB91443 - Published: 4/1/2026 RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled.RSTP is enabled by default on groov RIO devices running the affected firmware version. With RSTP enabled, a groov RIO may lose Ethernet connectivity and become unreachable when connected to a network switch that has BPDU Guard enabled. <less Restoring a groov RIO in Independent Port Mode may fail if using a pre-4.1.0 firmware backup file that includes Firewall settings Knowledge Base - KB91439 - Published: 4/1/2026 If restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore...moreIf restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore failure if Firewall settings are included in the backup file. The restore fails during the validation of the backup file. <less Node-RED on groov devices running pre-4.0 firmware may encounter memory leaks and restarts when accessing groov devices running 4.1.0 firmware with new web server certificates Knowledge Base - KB91418 - Published: 4/1/2026 When groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly...moreWhen groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly restart or experience memory leaks. This occurs when using Opto 22 nodes (node-red-contrib-pac, node-red-contrib-groov, and node-red-contrib-groov-io) to access data from the groov devices running firmware 4.1.0 or higher. <less A Node-RED Dashboard UI-only user can't access the Node-RED dashboard Knowledge Base - KB91428 - Published: 4/1/2026 If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard.If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard. <less groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Restoring a groov RIO in Independent Port Mode may fail if using a pre-4.1.0 firmware backup file that includes Firewall settings Knowledge Base - KB91439 - Published: 4/1/2026 If restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore...moreIf restoring a groov RIO in Independent port mode (groov Manage Home > Network > Configure > Port Mode field) with a backup file created in pre-4.1.0 firmware, you may encounter a restore failure if Firewall settings are included in the backup file. The restore fails during the validation of the backup file. <less Node-RED on groov devices running pre-4.0 firmware may encounter memory leaks and restarts when accessing groov devices running 4.1.0 firmware with new web server certificates Knowledge Base - KB91418 - Published: 4/1/2026 When groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly...moreWhen groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly restart or experience memory leaks. This occurs when using Opto 22 nodes (node-red-contrib-pac, node-red-contrib-groov, and node-red-contrib-groov-io) to access data from the groov devices running firmware 4.1.0 or higher. <less A Node-RED Dashboard UI-only user can't access the Node-RED dashboard Knowledge Base - KB91428 - Published: 4/1/2026 If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard.If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard. <less groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Node-RED on groov devices running pre-4.0 firmware may encounter memory leaks and restarts when accessing groov devices running 4.1.0 firmware with new web server certificates Knowledge Base - KB91418 - Published: 4/1/2026 When groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly...moreWhen groov Manage is used to create new web server certificates on devices running firmware 4.1.0 and higher, it may cause Node-RED on groov devices running firmware 3.6.1 and lower to unexpectedly restart or experience memory leaks. This occurs when using Opto 22 nodes (node-red-contrib-pac, node-red-contrib-groov, and node-red-contrib-groov-io) to access data from the groov devices running firmware 4.1.0 or higher. <less A Node-RED Dashboard UI-only user can't access the Node-RED dashboard Knowledge Base - KB91428 - Published: 4/1/2026 If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard.If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard. <less groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
A Node-RED Dashboard UI-only user can't access the Node-RED dashboard Knowledge Base - KB91428 - Published: 4/1/2026 If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard.If you create a FlowFuse Dashboard (also known as the Node-RED Dashboard 2.0) and a Node-RED Dashboard UI-only user, when the user logs in and attempts to view the dashboard, groov Manage displays the login screen instead of the dashboard. <less groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
groov View does not send emails after upgrading to 4.1.0 Knowledge Base - KB91427 - Published: 4/1/2026 After upgrading to version 4.1.0, groov View no longer sends emails on event activations.After upgrading to version 4.1.0, groov View no longer sends emails on event activations. <less When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
When Node-RED and groov View (groov EPIC only) are disabled, Uptime and Last Started fields in groov Manage display incorrect values Knowledge Base - KB91414 - Published: 4/1/2026 When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values.When Node-RED and groov View (groov EPIC only) are disabled, the Uptime and Last started fields on their respective groov Manage pages may display incorrect values. <less Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Error message when trying to create Data Service server certificate with fixed IP address Knowledge Base - KB91386 - Published: 3/3/2026 When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate.When you try to create a certificate for the Data Service and you specify a static IP address in the Server Name field, when you click Create, groov Manage displays an error message and does not create the certificate. <less Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Touching EPIC touchscreen when in sleep mode may trigger unintended UI response Knowledge Base - KB91340 - Published: 3/3/2026 With a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you...moreWith a typical touchscreen, when you touch a blank screen, the only behavior should be that the screen comes on. However, with this issue, the touch may trigger a UI item located at the spot where you touched the screen, which may create unintended consequences. <less External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
External monitor screen goes blank when selecting certain video modes Knowledge Base - KB91067 - Published: 3/3/2026 For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red).For a few external monitors, when you select a different video mode (from the groov Manage Home page, select System > Display > Video Mode), the external monitor may not display anything (it may turn black or red). <less Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Node-RED flows report errors soon after EPIC/RIO start Knowledge Base - KB91313 - Published: 3/3/2026 After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet.After your groov EPIC or RIO starts up, your Node-RED flows may report errors accessing local services (for example, groov Manage for I/O nodes) because the local services may not have finished starting yet. <less SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
SNAP analog points converted to G1 analog points after import through PAC Manager Knowledge Base - KB91370 - Published: 2/10/2026 If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules.If you used PAC Manager's Import/Copy I/O Unit Image feature to create a new I/O unit from an existing SNAP PAC I/O unit configuration, PAC Manager may converts any SNAP PAC analog modules to G1 analog modules. <less Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Symptoms of communication issues occur for approximately 80 seconds Knowledge Base - KB91365 - Published: 3/3/2026 You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. You may see symptoms or messages regarding communication issues in the applications accessing PAC Controller's host port for approximately 80 seconds. <less WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
WiFi SSIDs with space characters may not display in groov Manage, or connection may not restore Knowledge Base - KB91193 - Published: 12/30/2025 If you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a...moreIf you connect your groov EPIC or RIO to a wireless network that has an SSID with spaces, groov Manage may not display the SSID name or, if you do a Back and Restore as part of a firmware update or separately, your connection is not restored. <less PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
PAC Display may crash when creating a project archive Knowledge Base - KB91369 - Published: 1/13/2026 When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash.When attempting to create a project archive (.zip file) in PAC Display Configurator (File > Archive Project), PAC Display Configurator may crash. <less Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Vulnerability in groov Manage, groov View, and Node-RED may allow "clickjacking" Knowledge Base - KB91363 - Published: 3/3/2026 <less If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
If '@' in password, PAC Control can't connect to FTP server Knowledge Base - KB91367 - Published: 3/3/2026 In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. In a PAC Control communication handle to a remote FTP server, when you specify a password that contains the @ symbol, the controller cannot log into the FTP server. <less Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Newly created watch window may not appear in list of recently opened watch windows in PAC Control Knowledge Base - KB91359 - Published: 1/13/2026 After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu.After creating a new watch window in Debug mode in PAC Control, the new watch window may not appear in the list of recently opened watch windows at the bottom of the Watch menu. <less PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
PAC Display Configurator program icon may be indistinguishable from PAC Display Runtime program icon in Windows Knowledge Base - KB91354 - Published: 1/13/2026 The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other.The program icon for PAC Display Configurator may appear the same as the program icon for PAC Display Runtime in Windows File Explorer and the Windows Taskbar, making them indistinguishable from each other. <less Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
Addresses copied from the PAC Manager Inspect window may not paste correctly in the Generic Read/Write page Knowledge Base - KB91235 - Published: 1/13/2026 In PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write...moreIn PAC Manager, if you copy an address (like F026 0000) from the Inspect Opto 22 Device window (such as from the Analog Bank page) and paste it into the Address 0x FFFF field on the Generic Read/Write page (Other > Generic Read/Write), the address may be changed. For example, if you paste F026 0000, it may change to 0000F026. <less The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items
The minus (-) character may not be accepted in the Initial Value field when adding or editing integer or integer table variables in PAC Control Knowledge Base - KB91360 - Published: 1/13/2026 When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows.When adding or editing integer or integer table variables (32-bit and 64-bit) in PAC Control, you may not be able to type a minus (-) character for a negative value into the Initial Value field of the Add Variable or Edit Variable dialog windows. <less Page 1 of 127Next » Show 25 Items Show All Items Show 10 Items Show 25 Items Show 50 Items Show 100 Items