I've created a notice for guests only in 1.5 beta 1. If you change the wording of the notice, it saves in the admin control panel but the notice displays the old version.
It's actually not saving the changes even though it shows as saving. If I come out and go back in, the notice is back to what it was originally in the admin side.
I'll disable add-ons and check again.
EDIT - Still doing it with add-ons disabled. Here are my add-ons: