fallback from gnome-shell to the old desktop not satisfying since some days

[Joachim Backes]

After having applied all updates, I see the following problem:

Switching to the old desktop fallback leads to some problems:

1. The menus are missing for logging out and restarting
2. No menu controlled way back to gnome-shell: I have to start manually
    gnome-control-center

Somebody sees this too?

Kind regards