This bug was fixed in the package gnome-shell-extension-ubuntu-dock - 63ubuntu1.18.10.2
--------------- gnome-shell-extension-ubuntu-dock (63ubuntu1.18.10.2) cosmic; urgency=medium [ Andrea Azzarone ] * theming: Ensure _trackingWindows contains valid windows (LP: #1769383) -- Marco Trevisan (Treviño) <ma...@ubuntu.com> Tue, 15 Jan 2019 22:35:34 +0100 ** Changed in: gnome-shell-extension-ubuntu-dock (Ubuntu Cosmic) Status: Fix Committed => Fix Released -- 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/1769383 Title: Ubuntu dock/launcher is shown on the lock screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1769383/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs