Thanks for sending the video.
It seems that the Windows Viewer is hanging.
Could you please try the following if it helps:
– re-install spacedesk Windows Viewer app from Microsoft Store
– On Viewer settings, please click the “Reset Settings”
– try to restart your surface device
Yes, looks like an issue on your Surface GO device.
Please make sure that the system is updated (there’s no pending Windows Update).
And also make sure that your graphics adapter on Surface is updated too.
Can you please send the dxdiag info of your Surface GO?
Just run dxdiag.exe on your Surface GO, click “Save All Information”, then attach the output file (dxdiag.txt) on your next reply.