Collider Doesn't Rotate in Sync With Mesh

I noticed that when i scale a parent which includes multiple children with a MeshCollider and a RigidBody attached to each, during game play the MeshCollider will not rotate in sync with the mesh unless the parent has a scale of 1,1,1. I'm unsure of how to fix this, since i need to scale the parent to match the scale of another object... Image 1: parent scaled down to ( 0.4 , 0.77 , 0.4 )

Image 2: parent scaled to ( 1 , 1 , 1 )