It would have been best if you said which problem you are referring to.
The only one I can think of, is the elevation changes introduced by OrbX Vector which causes jetways to go up in the air, and this has been discussed so many times on the forum and, of course, GSX already has a fix for it, which is the "Airport Elevation" editing field in the scenery customization page, with allows to fix the issue by clicking the small "Airplane" icon on the top-right of the screen, to fix the ground elevation.