Non Convex Mesh on RB with Cloth?

I am getting non convex mesh collider on a Cloth / skinned mesh that is a child of a rigid body.

It appears to be cause the cloth to not load in the player, works in the editor despite the error but cannot find any other legit reason why the cloth is not working in the player.

As of yet I do not know how to resolve this issue. I have other Cloth on other RB's and im not getting the error on them and its the same setup.

Anyone have any ideas about this issue is this a bug?

 

So weird.... Disabled the cloth and skinned and there is literally nothing else on the object and yet its still throwing this non convex mesh on RB on this Gameobject.

Head <-> Brick wall.

 

I'm having the same issue here, I just have a basic plane as a child of my player (like a cape) with the Cloth component added.