Heya, I wonder if the builtin sphere mesh used in the NME preview has changed recently (particularly its normals)? Or maybe the Lights block has? Because for example here’s a simple material using the Lights block which IIRC would have worked not so long ago.
@sebavan the models were all glbs exported from Maya as I remember. This was so we could do things like bevel the cube and have control over the UV mapping and resolution of the meshes. I can look for the sphere and take a look, but it would have been exported the same as all of the others.
And the change for the sphere and plane PR was caused by the need for the preview meshes to have tangents in the file. Originally they were Meshbuilder meshes which didn’t have any tangent data on them. I will look at the original file and see if I can replicate with that glb.