This bug seems to manifest itself when you have a good number of themes installed. I deleted a bunch of themes that I don't use and the previews started working again.
Maybe the Appearance Manager just has a problem when you have a ton of themes? -- Gnome Apperance Manager Doesn't Show Theme Previews https://bugs.launchpad.net/bugs/201653 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
