I was jumping to Options which always goes via Admin Options. Saw the Admin user had changed being the Master one . I've seen this before and didn't pay attention. But, after the problems I had.... now I am posing the question: what does this?

I have 2 administrators after the access problems from awhile ago. Admin is the primary and RBC a user with all rights. Now it shows as Master.

Update: Didn't realize there's an option "manage all albums" and it wasn't checked for Admin. Checked and it went back to being master. All better.

The "master user" is the one with the most priviledges.