Infinite redirecting loop to /protected

Hello,

The problem is that the user with the access level "trail" is being stuck in a redirecting loop to the "domain.com/protected" page.

This happened when I tried to restrict access for this account to only one category. I did this by adding a URL group to the access levels for the "trail" accounts and set the positive rule with the URL "http://sub.domain.com/category/alcohol/.+" -regular expressions are turned on.

I would just like to allow one category and restrict the rest, is this the right way to do it?

i.e.
cat-a (allowed)
cat-b (restrict)
and everything else on the site restricted.