"Actor bug" in Unity.

Hi everyone, I seem to have this problem in Unity where there is an error problem:
Actor: updateMassFromShapes: Compute… (see attachment for full error report.)
Does anyone know how to fix this problem?

Cheers,
PKP

I’ve gotten this when i try to apply a rigidbody with a mesh collider whose shape actually has no volume, like a flat plane. If that’s the case, try using a prmitive collider instead of a mesh collider there.