I've never seen this bug occur with any other app. I would guess it's most likely a bug in https://github.com/lafrech/qbirthday/issues/13 and not a gnome-shell bug.
However it might be a gnome-shell bug if there is something strange about the window that doesn't happen elsewhere. Can you please try moving the window into full view and then take a screenshot of it? You can move it by pressing Alt+F7, then drag and click. Is the window taller than the screen? ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1777240 Title: Pop-up window from panel indicator qbirthday too much to the left, not fully visible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1777240/+subscriptions -- desktop-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/desktop-bugs