You appear to be using the 'oibaf' PPA which is not supported, and is known to cause bugs.
Please remove that PPA from your system, reboot, and then report new bugs for any problems you find. ** Changed in: mutter (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1875730 Title: Gnome Shell wallpaper corruption To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1875730/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs