I was playing around with the membership plugin with the syudio theme on a normal WP install (no buddy or multisite) (this is my first ever wordpress site ... so no experience at all ... ahhh).
Looks like I lost all admin access rights for my account (I do still have access to the membership plugin and I am in the admin group and my level has the associated WP role "Administrator" ... I ticked all things to the positive rules ... and stillnot working. Meaning I can't change the studio template anymore and all these nice things.
I also disabled and disabled the plugin ... and ohoh ... changed even the foldername of the plugin to get rid of it ... no result ... I changed it back and it is still the same now.
I do not have a backup ... (haha ... my first site ... just playing around . Should learn this first ... haha.
Hope there is an easy solution ... otherwise I will wipe the whole thing ...