I'm in the same position as @Dehan Cilliers I'm just tired of this all.
I have MSFS020 and GSX, and I mainly use EGLL.
I have Navigraph on my Laptop and I can see the aircraft moving while spawning so until I changed the settings under advisement to ignore collisions the sim was crashing before it was fully spawned.
I was testing the aircraft from RJTT and I could not even spawn at the right runway. it always spawned at a runway, but not the one I had chosen.