Could you please send us the diagnostic logs for this issue?
– open the spacedesk Driver Console window app by clicking the spacedesk tray icon on your task bar’s notification area
– click the Diagnostics on the left side panel
– if Debug View is not available, please click the Download button first
– switch Diagnostic Collection ON
– try connect your viewer app and move a window on secondary display to reproduce the issue
– switch Diagnostic Collection OFF
– click Save All Information button
PS: Saving all information will take a few seconds, then please send us the whole folder which contains all the diagnostic logs collected.
Please right-click the folder -> Send to -> Compressed (zipped) folder, then attach the *.zip file on your next reply.