Thanks for the feedback.
For now, we are still investigating what might be the cause of Code 31 on our driver on your machine.
We tried to reproduce it here with the same operating system (Windows 10 x64 for Workstations) and so far it’s working properly on our side.
We are not sure if this will help, but maybe you can also try to open Windows Settings -> Update & Security -> Troubleshoot -> Additional Troubleshooters, then run the troubleshooter for:
— Windows Update
— Program Compatibility Troubleshooter (then select spacedesk SERVER)