Thank you very much for sending the requested files.
It seems that you have a Virtual Desktop (from https://www.vrdesktop.net/) installed in your primary machine.
This software seems to have incompatibility issue with spacedesk.
Please try this workaround steps to make it work with spacedesk:
– open device manager in your primary machine
– go to Display adapters and right-click Enable device the “Virtual Desktop Monitor”
– open spacedesk Driver Console then switch the spacedesk Driver OFF -> ON
If the steps above did not help, the only option is to uninstall the Virtual Desktop app then reboot your primary machine.