CoreDragCreate error - drag&drop and copy-paste stop working
Solution 1:
I don't know what is causing the issue, but the pboard process is responsible for copy and paste. Restarting it might provide a fix (temporarily), and can be less disruptive than logging out. From this answer:
Check if the pboard daemon is running:
launchctl list | grep com.apple.pboardIf the pboard daemon is running, then stop and start it. If it's not running, start it:
launchctl stop com.apple.pboard
launchctl start com.apple.pboardThen, you may need to restart the application(s) where cut-and-paste is not working.