Under specific circumstances user information may be lost in the Runtime.

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• FAQ: An error message "The user information is invalid! The Service Engine is closing" may show up unexpectedly when starting the Service Engine.

  This error message is an indication of the Service Engine that the Service Engine files contain an inconsistency and validation has failed. Normally, such an error message would only appear if files have been tampered externally. There is however a ...

• Under specific circumstances the runtime may produce an unhandled exception when the user list screen is opened.

  Summary When an administrator user groups a column and clicks on a group in the user list screen the runtime may close unexpectedly. Description When an administrator user groups a column and clicks on a group in the user list screen the runtime may ...

• The OPCUA client driver may cause the runtime to stop responding under specific circumstances

  Summary The OPCUA client driver uses the due time for publish responses (keepalive) to check if the OPCUA server is still responding. Normally if the connection to the OPCUA server is lost, the connection is closed at the TCP level. If however no ...

• Under specific circumstances during redundancy switch-over a value received from the PLC on the standby server may be lost

  Summary With a redundant runtime on server and standby server that are both under heavy load the server, the runtime on the standby server may fail to record a value from the PLC if this value is received from the PLC after the server has failed and ...

• The runtime may close unexpectedly under specific circumstances when opening the user groups list screen in the runtime.

  Summary Opening an empty user groups list screen or just without the group list control element causes the runtime to produce an unhandled exception and to close unexpectedly. Description Opening an empty user groups list screen or just without the ...