In Jammy Jellyfish (Thunderbird 91.5.0, GNOME Shell 40.5) when this bug occurs it also cause the Thunderbird window to not display at all. The application dock shows that it is open, but there is no way to get to it unless you right click the dock icon and open a new window.
Sharing here as I believe it is related. Hopefully the fix committed will take care of this. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1933996 Title: Alt-tab stops switching windows [JS ERROR: TypeError: window is null _createWindowClone@resource:///org/gnome/shell/ui/altTab.js:29:27] To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1933996/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
