After many copy and paste operations (3 or more) and the command "export... " krita's window environment locks down. As if something would save but nothing is saving. (Just to give an ideas) Sometimes I need to press "quit" just to "refresh" krita's win. environment, most of the time a simple swap between "Spaces" on Mac Os is enough.
Can you still reproduce this with the 4.0 beta?
Please give me the link for v 4 beta
https://krita.org/en/item/krita-4-0-beta-1/
Solved. Copy paste and move pasted doesn't freeze anymore panning or zooming