The problem doesn't have anything to do with GSX, since neither of these airports use GSX jetways, and none of the Hawaii airport has been recently updated either, except PHNL, which now has GSX/SODE jetways.
If you want to customize these airports to add GSX jetways, they must be excluded first, as if it was any other 3rd party scenery that use default jetways. We'll add SODE jetways to the other Hawaii airports soon.