Help with opening pinned icons

If I have multiple Firefox browsers open that are not in full screen mode, once clicked on, that screen disappears before I can reach it with my pointer.
This happen with all pinned icons that are not in full screen mode or a small notification box.
Someone mentioned that Lenovo maybe had an update that messed with the settings.
Any thoughts?

ive actually had that a while back with my pc, not a lenovo but try to change the windows theme from aero to something else like basic. if that doesnt work it could maybe be a simple gpu driver update or something

Thanks Impulse. Changing the theme seemed to work.