We've upgraded our Adaxes from 2017 - 2018. One of the sub-sites that have been configured is an "administrator" portal. This portal is restricted to members of a specific Security Group, "Adaxes-admins" (per se). It is working fine in the 2017 instance, but gives an "Access Denied" when trying to login to the new instance. I can remove access control and login without a problem, however when AC is set for a Security Group, no access.
I've looked at the group itself and my account is a direct member of the group, there are nested groups, but I wanted to rule out nested groups as a possibility.
Any help/direction would be greatly appreciated.