When setting the weather for storm conditions and letting the track get very wet the curbs go grey with only faint colouring showing through. Also the reflection on the track is almost mirror like and tracks side buildings are popping up really badly. I've deleted shaders & cbash just to make sure and it's still the same. I don't get this on any of the recently updated tracks which all look stunning with puddles and good reflections. Just me on track no ai. Track is v1.07 Car v1.993
I noticed this as well, also see how the reflection of the front left wheel doesn't appear either. Doesn't really bother me as it takes nothing away from the game play, ..SaoPaulo is still awesome fun to drive in the rain.
Updated tracks to rain effects: LimeRock - 2.02 Mores - v1.82 Nola - v1.30 Indianapolis - v2.04 Silverstone - v1.84 Brianza - v2.04 Malaysia - v1.82