I finally managed to reproduce your crash on my PC, and it happened after I used CSM to convert the track's .wad file to a fastwad file. So please try these steps:
In CSM, go to File -> Options and deselect "Fastwad check"
Select File -> Convert all wads -> To normal wad
Download the track again
If this works for you, you'll also need to download Sakhir again as it is the exact same issue.
My unfinished tracks: [
www.grandprixgames.org]
Send bug reports and track editing questions to
f1virtualblog@gmail.com