Just want to mention that I found a bug.
I could paste a screenshot in the view scren of one project but not in the other. So I synchronised all project settings and then isolated the problem. It was because of different field configurations.
Then It took me some time to found out what was wrong by gradually hiding fields from the field configuration that worked.
This is the result:
When I hide the Time Tracking field from a field configuration, pasting a screenshot in the view screen does not work.
Showing it again in that field configuration makes it work again.