I don't mean to be a pest by bumping an old post, but I'm have a real hard time wrapping my head around the SU10 Navdata option and why some airports aren't loading in GSX.
Example: yesterday I purchased the Northern Sky Studio version of Ketchikan, Alaska (ICAO PAKT) from Sim Market, not the Marketplace. It's installed in my Community folder. When I have the option set to use SU10 Navdata and load into that airport for departure, I get the GSX error that no valid AFCAD is found for the airport and services are unavailable. If I turn this option OFF, and after downloading a custom profile for this airport from flightsim dot to that someone else made, GSX works.
Can you explain what the SU10 Navdata option is actually reading and why some third-party sceneries won't work with that option set?