In latest patch it seems game really struggles with object that has either;
Other side of object faces
Glass / transparent windows
What actually happens is that the graphics get "dragged" much like what you could expect from a low resolution video. In addition, when veiwing through an objects backside (like walls, enviroments etc) everything that is on the other side / the area you look on is dragged as well.
Lastly, same happens with vegetatition, specially vissible on tracks like Crossroad from the DD mod.
If it does not make sence, let me know and I will post screenshots of it.
Edit: Wrong forum sorry. But got a picture of it. This is from behind an grandstand looking forward: