[ Solved ] Hinge joint weird behavior

Hello,

I have a seat with a pivoting foot made with two primitives ( created with probuilder ) and connected by a hinge joint. The seat is gently turning on the foot axe, but when I collide anything on it or grab it, it start to get some really hard distortions.

I really can't figure out what's happening here...

here's a gif


My chair is structured like so :

• Prefab container
  • foot (having a convex mesh collider & the hinge component & rigidbody)
  • seat (having compound colliders inside & rigidbody)

Does anyone as ever seen this?

Thanks for your help!

 

Well, I took out the seat and the foot from my prefab, wrapped them in a new gameObject for then, creating a new prefab and everything's back to normal.