There may be more but I found at least 1 section of the map where the mountains have tears in them. This isn't a good look for DLC, if itwas an early acess game, then sure it's ok but this is a final product. I hope you can revisit it and fix these.
i know there are a lot of those around the whole map some you have to look for others very much noticeable there are also some 2d trees placed very near to the tracks