Today I had the same issue on archlinux with kernel 5.9.14 and gnome shell 3.38.2, it happend right after taking an areal screenshot with gnome-screenshot while in fullscreen, after that when I hovered windows bar and the side dock the cursor became the classic cross you see while taking screenshots and left/right clicking didn't give any result. gnome-screenshot was called by a keyboard shortcut.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181666 Title: gnome-shell randomly blocks mouse clicks from working in app windows To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1181666/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs