Blender Bones And PHAT

I did not solve that issue yet, I will update this post when I find a proper solution.

Problem

I started with a 3d car model that I ve find on internet. I added an armature on it by posing 5 Bones: One for the body, 4 for the wheels. I've followed several tutorials for that. After importing in Unreal Engine and by adding the colliders to body and wheels, the simulation acted really strangely.

To understand where the problem came from, I made simple car with basic shapes and rigged it again with bones. Then in PHAT, same issue.

What should I check to get it right ?

Result

issue

Illustrated Steps to Result

Blender Screenshot
Blender Screenshot

Blender Screenshot export 1
Blender Export Screenshot 1

Blender Screenshot export 2
Blender Export Screenshot 2

Blender Screenshot export 2
Blender Export Screenshot 3

Unreal Import
UE Import

PHAT 1
UE PHAT Issue 1

PHAT 2
UE PHAT Issue 2

PHAT 3
UE PHAT Issue 2

PHAT 4
UE PHAT Issue 2