I have the same issue in Ubuntu 17.10 (Wayland). I was using Netbeans, Chrome and a VirtualBox VM running Windows 10. It seemed that the VirtualBox grabbed the mouse, but it has mouse integration, and the actions bar and activities were clickable.
I couldn't resolve it by switching to another virtual terminal, neither by running "gnome-shell -r" on a gnome-terminal (it said: (gnome- shell:5963): mutter-WARNING **: Can't initialize KMS backend: Could not get session ID: No such file or directory). So, I had to close everything and logout and login again. It worked. -- 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