Captains,
pls keep in mind:If you exclude airports from GSX (CouatlAddons.ini) e.g. you prefer using AES at some airports in FSX
it would also
exclude GSX from working on identical airports in P3D, too
This simple issue took me nearly 2 hours to solve, so maybe it will help you to prevent wasting time.
example:
if you want to push your aircraft with GSX (control + shift + F12) in P3D/FSX and you see the message:
"Could not find valid AFCAD data at this position"check your CouatlAddons.ini for excludes first.