have you installed the shader fix for the flashing surface? you can find it in the beta testers forum. Please let's continue this conversation there.

Bumps are there on purpose to make it more thrilling, but this is just my personal opinion about it. It might be that I've to smooth it a bit. Anyway with warmer tires it's easy to go over it.

I've just found the updates for RC - sometimes I really lost myself here I'll update this post about issues...

UPD: now all looks pretty good Maybe shadows of safety barriers on the infield looks like black holes, but it is not big deal.