Hello, the usual cause of this with gnome is extensions -- try disabling all the extensions, see if you reproduce, and enable them one at a time, etc. You may find one that causes the screen lock to not work as you expect.
Thanks ** Information type changed from Private Security to Public Security -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1882353 Title: Ubuntu Dock and Top bar accessible from lockscreen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-ubuntu-dock/+bug/1882353/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
