I just startet to test this Plugin and I noticed, I can't view a Post in a excluded Category. I open the category with the right URL and tried to view the post. WordPress only responsed an errorpage.
In my usecase the category should be hidden for normal visitors. Only the press - with knowledge of the URL - should open it. In this category should be some posts. The press must open these. Everything else were useless.
I have done this:
1. I created a new category 'press'.
2. I posted an article in this category, so ACE noticed it.
3. I checked this category in ACE > Categories for every single case.