This is still happening in 21.04, most recently with a repeating calendar event instance that was canceled over a week ago. The desktop has been rebooted in the interim.
** Tags added: hirsute -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1923893 Title: After rescheduling an event, calendar alerts appear for the old time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1923893/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs