The question would be silly, if I am not the Admin role on this account.
Like a zillion times before, I invite an internal tester, add him a role (Customer Support in this case), a users accepts it, but I do not see this user in the list of internal users nor I can add him to test any TestFlight build.
Does anyone know what roles are automatically added to TestFlight Beta Testers internal group? And what to do when Admin cannot add a user to TestFlight build?