Following your recommendation, I downloaded Mr. Folco's "Cumberland to Connellsville" route; I am interested in comparing it with one of the earliest 3rd-party routes made for MSTS, the "Sandpatch" route by Maple Leaf Tracks.
However, it suffers from exactly the same problems that I have been experiencing with my "Potash" route, in that when opened in Surveyor, there is nothing but an infinite expanse of blue, even when the Warnings & Errors check in CM comes up clean.
If anyone from Auran/N3V is reading this thread could you please cast some light on why this problem is occurring?
Bruce