VrayLightMtl produces unexpected results when applied to a Railclone object.
The firest file is the railclone object inside another one (spheres inside each room of a building)
The second is normal spheres instanced inside the rooms (railclone) with the same material applied.
Vray 5 3DSMax 2021.
Is this known behaviour? If so it's a real shame as it wouldn't allow material workflow for variable lighting inside buildings.