Skinned Mesh Rendere is invisible in build

[Fedi15]

void AttachToMesh(SkinnedMeshRenderer mesh, int slotIndex) {

		if(!IsServer) return;
		if (currentMeshes [slotIndex] != null) {
			currentMeshes [slotIndex].gameObject.GetComponent<NetworkObject>().Despawn();
		}
		SkinnedMeshRenderer newMesh = Instantiate(mesh.equipment3D) as SkinnedMeshRenderer;
		newMesh.bones = targetMesh.bones;
		newMesh.rootBone = targetMesh.rootBone;
		currentMeshes [slotIndex] = newMesh;
		newMesh.gameObject.GetComponent<NetworkObject>().Spawn();
	}

when i spawn mesk.equipment3D it's not visible on game build but when i change instead of spawn mesk.equipment3D i make copy of player skinned mesh renderer and then i change it's property like shared mesh and shared material to the one mesk.equipment3D it work and visible in editor and build

[mootaz23]

I have the same problem please help !