Issue: Special page permissions

Basically I set up a new usergroup based on my regular usergroup but with the wiki permissions applied, then added it to my user as a secondary usergroup. It didn't work and gave the errors with the navbar and also no matter what I did it wouldn't take special page permissions, it always said you don't have permission even though it was set to have permissions.

If I give my user this usergroup as it's primary group it all works fine. I suspect something somewhere is only checking primary usergroup and not checking for secondary memberships.