Rocky Start Campaign Bug?

I seem to be having a weird bug with the mission Canyon Trial. I've done the campaign twice now and cant finish the last race because only 2 checkpoints load, One where you EXACTLY start and the next one, After that there are no checkpoints. I followed the AI but it keeps just flying off the same cliff every time I restart (Which is kinda fun to watch) and I also drove around for 10 mins looking for the next checkpoint and couldn't find a thing.

EDIT: Oh yea forgot, I have mods installed i'm going to test to see if a mods breaking it. Also I might try in safe mode to see if it breaks as well.

EDIT 2: Just did the campaign AGIAN without mods and I still have the same problem, Also my game starts straight into beamng, I don't have a launcher to clear cache and/or go into safe mode

 

Yea sorry, I'm new to the forums. I do have launch options but that was to get outgauge to work (it was -luasocket)
I will try the clean reinstall right now as well
--- Post updated ---
Must of had corrupted game files, A reinstall fixed the last race