Hi all - since a day or so I am experiencing some weird behavior on my site. When I do tasks like clearing the cache or updating a user, I'm signed off automatically upon clicking "clear cache" or "edit". When I sign in again and redo the task, the same happens. When I ask Concrete to remember my sign-in, it will not sign out anymore.

Also, I appear to have lost some permmissions, for example to view the sitemap in the backend, to add pages or to edit my own user. Here I noticed I am not part of the admin-group, but trying to add myself, Concrete tells me "access denied" (which given the context is correct, since I have no permission...). However, it's the only user profile there is. I cán add and edit pages from the frontend of the site by the way.

Hope this rings some Christmas bells, thanks already!