When I am in full screen mode on my vertical monitor and move over to my secondary monitor for anything moving back to my vertical monitor seems to displace my selection tool slightly. It’s just enough to make selection of an individual item difficult. If I click out of full screen and then click back, it works fine. Not a huge problem, but a definite glitch in my workflow. I’ve heard that this is a Dorico issue, so I’m posting here in the hopes that there’s a solution (either now or in the near future!)
This is a problem with the underlying Qt application framework on which Dorico is built. Presumably it is the case that your two displays each have either different resolutions and/or different display scaling settings. Unfortunately there is indeed no solution other than triggering a resize of the window when you move it to the other display.