Engine cannot be seen after body and engine selection

I chose the body that I want and after, an engine that I had already made.When I got done with customizing the car, I wanted to put a driveterain but noticed that the engine didnt exist and the exhaust tip wasnt connected to anything.It is really annoying as I havent found a way to solve it after reopening the game and searching for hours.If this has happened to anyone please tell me how you fixed it.

I’m having a similar bug, but instead of the engine, it’s the whole car, and the engine is retained

I guess it’s because I changed the engine and changed the engine data and went straight back to the main menu, which caused the car to be destroyed

Could you elaborate a bit more on this?

Does the engine you created for this car still show up in the Engine Designer or not?

Yes, this engine still exists