DirectX export crashes BTB

[zaxxon]

I would like to export a BTB project to direct-x format, but when I try to do it BTB crashes.

I deleted all the terrain and all the tracks but one, but still nothing. I also deleted the sky object but still no luck.

Any idea would be appreciated before I start to search for the problem deleting groups of objects until it works...

This is the track (BTB project can be downloaded from the first message)
http://forum.rallyesim.fr/viewtopic.php?f=340&t=6842

 

[zaxxon]

Thanks ehrlec. I'v got it. The gray tyres were the problem. After removing them the export worked fine.