I installed a big police pack and I tested al the vehicles. Then I found out that on 3 of the 22 cars the emergency lighting was broken. This is the same for my friends.
Does anyone know how to fix this?
I know it’s late for an answer, but if anyone else is looking for one:
The issue is Siren IDs in carcols.meta ; change the IDs of the vehicles having issues to something else. This is particularly likely to happen if you have a lot of vehicles that have emergency lighting. If that does not help and you’re sure the ID is not used anywhere, the carcols.meta file is borked for those vehicles, and there’s not much you can do about that besides not using those vehicles.