Note: if "screenshot" is bound to a different key (I tried with <Super>Button3), bug is gone. So I think the "highlight" feature (bound to <Super>Button1) is somehow in the way and should be switched off before "taking the picture".
Note: if "screenshot" is bound to a different key (I tried with <Super>Button3), bug is gone.
So I think the "highlight" feature (bound to <Super>Button1) is somehow in the way and should be switched off before "taking the picture".