After upgrading from Ubuntu 22.10 to 23.04 I have this area (red rectangle) not clickable in any applications. Moreover, When I click minimize, some applications from the tray panel are called.
[UPDATE]
After running this command setsid gnome-shell --replace I saw this area in gray. After this problem was solved, but after reboot it appeared again.
Also, it seems like this area is a tray application because it is showing the name of the application from the tray.
[UPDATE #2]
Found out that this window is an invisible application icon. When I change workspace it becomes visible. https://drive.google.com/file/d/1BLHsBJe1kv76ijC0-1dXnUGyEuwz2LO8/view?usp=share_link

