When I switch to Desktop using Alt + tab while watching a full-screen video (Any player / Youtube) My Launcher and the top panel vanishes. Even Right-click won't work.
My Desktop Before :
Watching any Full-screen Video :
I switch to Desktop using Alt + tab :
Then I find launcher and Top panel missing :
For clear understanding , I have made a video. Please check here : https://youtu.be/M9TforHAY3g