Vehicle stays engine on after kill or hit a NPC

Hi. I have an issue with cars. When I spawn a car with comand /car I drive some meters, stop the car, go down and car goes engine off. Then, I killed a NPC, go up to the car and then go down and the car stays on. I don’t understand what is wrong. I use ESX- final framework version. At the support of ESX they said is not an issue of framework, must be a FiveM issue. I need help to resolve the problem. Thanks for support and sorry for bad english. Best Regards.