I’ve got the codepen prototype for my last showcase (two instanced meshes form a single object): R E T R O B O Y (Tetrahedral deconstruction)
I simply added a sphere with MeshNormalMaterial between the object and my camera and everything works just fine.
Though, I use selective bloom there.
https://codepen.io/prisoner849/pen/VwjWMOw?editors=0010
So, it’s better to provide an example that shows the issue 