It might be best if you check the SODE log, which can be accessed from the Platform Manager, maybe there's something there which might tell what's wrong.
Note that, the only interaction SODE has with GSX, right now, is when you enter an airport (SODE will communicate to GSX the list of its own SODE jetways, if there are any), and when you are parked on a gate, when operating a jetway.