any thoughts on this? also worth noting in my example above that the instances of the one model are inside out – the original seems to import fine and the material maps correctly, but the instances created from it are flipped. adding a standard material to any of the meshes also displays them inside out, as originally mentioned. probably has to do with the handedness and y orientation shifts between blender->gltf->babylon somewhere, same as the rotation issue. I can create another playground to make this more obvious if desired.