So as the title states I have a problem with a custom vehicle:
The vehicle is installed in ambulance slot but also was tested on a addon slot.
The problem is whenever I enter the vehicle everything is fine I can turn on and off all lights/emergency lights etc. but when I start driving I get a frozen screen and then the game crashes
Here's a video:
(the render quality was lowered just to export it faster)
Would be amazing if someone could help me!