Access masks have no priority above forum/categorie permissions?
 

I don't know if this is a bug but it's strange.
I make a categorie called "private" and set the forum permissions in private in such way that only Administrators and Super moderators have access.

Now I make some forums under that category, for example:
Categorie = Private
Private -> Moderators
Private -> Admins
Private -> Club members.

Now the problem is as followed. Suppose one of the Club members is George.
I use access masks to give George access to the Club members section.
Problem: George can't see this section due to the categorie settings.

Solution, I set the access mask for George so he can visit the Private categorie.
Problem: George can see and visit now all subforums in there (also the Admins section!)

As far as I remember, in old vB versions, when you give access mask access to 1 certain forum, it made no difference how the category was set up, the user had access.

Now how can I solve this problem?
1.) I want the user to only have access to the Club Member forum
2.) I don't want any other users of his usergroup to be able to see the Private category.
3.) I do want George to see only the category name, and then only the subforum Club members in there, without the others.

How can I fix this. This should be possible to do with access masks so please don't suggest using another usergroup.
Anybody?