ISSUE Where did the lights go?

[Felix van Poelvoorde]

Hi, I recently started modding on Assetto corsa cars and started with recreating the car of my dad. First the skin (easy) then the rims. The rims needed 2 attempts but finnaly they work with no issue(the rims), but now after all the material values done the rear lights (front direction indicator) dissapeard and i retraced every part and material values. Also are the side and back windows non transparent. But can't figure it out. Does somebody know how to solve this.
Greetings Felix
Links to the files(google drive):
the original car
the car with rims (it says "met wielen" what in dutch translates to with wheels)
the car where i took the rims from