I have one rigged body with 9 child box colliders (With a gap between each one).
When they all rest onto a flat area of terrain the game object often jitters and will not go to sleep. I am applying no force or movement at this time.
If I remove several of the box colliders the game object will sleep.
Switching to sphere colliders stops the wobble and the game object sleeps.
The problem only seems to appear when multiple flat surfaces of the box colliders are in contact with the flat terrain. Is this a known limitation/bug of the physics engine, or am I doing something wrong?