We have a Power Automate flow run once per hour between 1am to 6am. The flow is:
1. Start the VM
2. Call a desktop flow to run in VM
3. Regardless step 2 success or fail, deallocate the VM
The problem is the flow failed from time to time. It is almost 50% of the flow will be failed.
The error is always "Cannot create new session to execute unattended run" in the 2nd step. There is not co-relationship between each success and fail. It just fail randomly. There is no user login to the VM since the flow is running at the VM.
What could be the problem and how should I troubleshoot it?