Alex,
OK, so I published the SCLogin module and the JFBC health check runs OK.
The users where created with ARRA user import, but that doesn't seem to be relevant, as I just created manually an entry in your name, and that doesn't work either.
There are 2 users which have a mapping to JFBC, those work (frontend login). The others don't.
It may be something in my settings, but as far as I can see, everything is correct.
I'll sent you login details both for admin and for your account over PM.