I'm unable to share my screen. It started with screen version 4.0.4, I didn't have such problems with previous versions. When I start the app then it shows that I should install and start compton. It shows the message even when compton is installed and started. And then when I try to share my screen then it just shows black screen with a mouse pointer and that's it. I'm unable to do anything. Fortunately I managed to kill screen from the terminal (which wasn't easy, as I didn't have any way to close the black window.