I tried everything you listed. I completely removed all plugins and scripts. But nothing helped me. I thought there might be a problem with the mods folder. Do you think installed police cars can affect the textures of NPC cars? As an experiment, I deleted all the police cars from the mods folder and the problem with the textures of NPC cars seemed to disappear. I then added police cars one by one, loading the game after each added car to see which car was having a negative impact. But it was not possible to find out, since I added all the cars and at first the problem with the textures of NPC cars did not manifest itself, but then after loading the game again, the problem returned again. Then I uploaded completely different models to the mods folder, different from the ones I had. But nothing helps. I still don't know what could be the reason.