A GSX profile won't be able to fix a scenery with isolated parking spots, only those who made it can.
Also, be sure you don't have any other scenery in conflict, especially if you enabled the SU10 Navdata option in GSX because, when that option in Enabled, GSX will get all data from the sim, including conflicts and mistakes, while when the option is Disabled, the chance of conflicts would be reduced, since in that case GSX will read the airport .BGL, one file at the time.