I've just upgraded our copy of amember pro to 5.5.3, which appeared to update with no problems, however now when users try to login to our expressionengine site using the amember ee integration it doesn't work. If I try to 'login as user' from within amember then go to the ee site the login link is still displayed but just refreshes when selected as though I am logged in, but the login link should not display to logged in users, so on some level it seems to think I am logged in.
This really is very urgent as our entire business is dependent on providing access to paying subscribers.