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Custom permissions not working
I'm trying to give one of my categories customer permissions so that only a few user roles can see it and interact within, while the rest are oblivious to its existence. I've ticked the "This category has custom permissions" box and customized where appropriate. Essentially, those that are banned, guests, or regular users are unable to see this one category. Anyone who is a moderator, super moderator, or administrator can see and post within.
However, when I view the forum logged out, and even in other browsers, guests are able to see the category and post I have within. I imagine this is the same for regular users too.
As well, something of note is the category Url. When I'm editing any given category, it says the url is: http://mydoman.com/forums/category/staff/
However, when trying to go to this, I get a page not found error. When I change "category" to "categories" it works like it should. What's the deal with this? And is this somehow causing the problem I mentioned above?