It seems (from gnome-flashback mailing list) unity-gtk-module is responsible for this. Adding it to affected project.
** Also affects: indicator-applet Importance: Undecided Status: New ** No longer affects: indicator-applet ** Also affects: unity-gtk-module Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1222339 Title: Adding "Indicator applet appmenu" to a panel in gnome classic/fallback causes all items in the panel to disappear To manage notifications about this bug go to: https://bugs.launchpad.net/unity-gtk-module/+bug/1222339/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs