There is a bug report about 'printer can't be removed' upstream on https://gitlab.gnome.org/GNOME/gnome-control-center/issues/187 , I'm going to comment with some of the debug details you added maybe it can help them to debug the issue
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1810404 Title: printing options set in control center don't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1810404/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
