The only thing I can think of is that Greenshot freezes the screen when activated and if Gadwin does not, moving the mouse to select the area is like a mouse shake and will close the PP box in manual opening mode. Try Gadwin & move the mouse slowly Roll Eyes
Terry
I find many screens will disappear when a mouse is clicked.
Try EDIT PREFERENCES, for example. Same thing. When I use my screen capture program and have to right click the mouse, the Edit /P box closes too.
My email program does the same thing as do many more.
I think it depends on what type of box the program is using.
To beat that, I use the Hot Keys instead of the Mouse.
I use PicPick, a free for home use program. It works very well.
Fred