Comment 0 for bug 1799787

These problems have been seen several times over the past week and are partly covered by other bug reports so please mark as a duplicate if appropriate but I'm creating this report as I feel that all issues are connected.

The Dash to Dock extension at times:

 is seen on the lock screen
 changes size when hovering over a program launcher icon
 loses it transparency

The last time I saw an issue was immediately after running an update in a terminal window. As soon as the process finished I noticed the Dash to Dock had changed appearance. As I couldn't remember how i fixed it previously I attempted to restart gnome-shell by Alt F2 > r and enter.

gnome-shell didn't restart gracefully as it should and gave the appearance of a crash as only program windows were visible, the remaining parts of the screen were black. I was eventually taken back to the login screen so had to restart all of the previously running programs.

This last issue of not being able to restart gnome-shell has been seen on a number of occasions over the last few days, in fact twice today and the last after a recent reboot with hardly any activity being carried out on the PC except to start a few programs using the Dock and running the update (which just found an update to Google Chrome).

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: gnome-shell 3.30.1-2ubuntu1
ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
Uname: Linux 4.18.0-10-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Oct 24 21:01:13 2018
DisplayManager: gdm3
InstallationDate: Installed on 2018-10-02 (22 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Beta amd64 (20181002)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)