Ibushu Hopper Custom turns into a submarine

When the right fender (where the snorkel is attached to) is pulled off, the Ibushu Hopper can go underwater without the engine flooding. Although this is a lot of fun, it's not what is supposed to happen (I think).

Images:

(Hopper without right fender)

(Hopper without fender in water)

(Hopper with fender in water (engine floods))

The screenshots were taken on version 0.9.0.1.

 

It's been brought up, and it's being worked on.

 

Yeah, just noticed that. My apologies.

 

Is a custom map, try too on a BeamNG official map.

 

That would make no difference. It's a known bug. Custom maps use the same water as stock ones.