1. This mod was tested before publishing the update and it works fine, I wouldn't publish it untested.

2. If your car is gone and is replaced by a random vanilla vehicle, that means you run the game after the update without that damn library mod enabled. Subscribe to the library mod here: https://steamcommunity.com/sharedfiles/filedetails/?id=3171167894 and run a server backup to fix the problem in multiplayer or reload an older save backup in single player world. If you don't maintain backups, you will have to manually replace the missing vehicles. To avoid this problem in the future for other mods that will be connected to the library, make sure you are subscribed to the library mod from now on.

3. This is a big update and addon mods to this mod will probably stop working, give those mod creators some time to update their stuff.