3806615 - IsRDP session disconnected with the Tricentis Team Agent used for unattended TTA executions

In the Tricentis Team Agent used for unattended TTA executions, the tests execute successfully when CORP\svcTosca has an active manual RDP session.
After the execution the RDP session is disconnected, unattended executions fail because the Team Agent is unable to establish the required RDP/display session.

The Agent log repeatedly reports:

System.InvalidOperationException: TServiceDataContract and TClientCallbackProxy version mismatch

Tosca TTA Cloud 

Start Team Agent with RDP enabled.
Confirm the Team Agent is connected.
Disconnect the manual CORP\svcTosca RDP session.
Trigger a TTA test execution.
The Agent attempts to establish the RDP session but reports that the RDP session is not alive and eventually exhausts the reconnect attempts.
The test fails with Screen recorder: no display output is available to record.
Manually connect to MPF4xxxxxx  using CORP\svcTosca.
Execute the same test again.
The test executes successfully while the manual RDP/display session is active.

a new fix was required for the Cloud Platform

As Tosca Cloud is a cloud-based platform, the fix has already been deployed to the environment. No additional download or installation is required on your end. To ensure the updated configuration is applied, users need to follow the steps below:

Log in to the Agent Machine.
Stop the current RDP connection using --deleteRdpConfig.
Reconfigure the RDP connection using --useRdp.
Wait for the auto-update process to complete.
Enter the RDP username and password.

KBA , XX-PART-TRI-TTA-CLD , Test Automation for SAP Cloud ALM , Problem