As primary administrator, when I create an administrator for specific albums, this person is allowed to select and manage albums that were not intended to be accessible. The "User admin" rights are toggled off, but all albums appear in the "Managed albums" list. Initially, only the albums originally selected when the adminstrator was created are show with a check mark, but this can be changed, even though the person is not supposed to have "Usedr admin" rights.

So I'm confused, how does the main administrator create an secondary administrator for a specified album and make sure that person only has access to that particular album?

This is a bug introduced when we went to checkboxes for the album list. It will be fixed in tonight's build. Thanks for pointing it out.

fast work, thanks!