I would need the airport AFCAD file as well. One reason for the "parking isolated" message, other than it being REALLY isolated, is a mismatch of names between the .INI and the AFCAD, as if you were using an .INI made for a different version of the AFCAD, which might have been updated in the meantime, but kept the same name, so GSX tried to associate an .INI and a .BGL that are not supposed to be used together.