Unnecessary pain points in the mesh uploader in Mesh Posted June 19 · Edited June 19 by animats 6 hours ago, Beq Janus said: If you can find a mesh that reproduces this then I'll definitely dig into it. I don't believe it is the case because the internal mesh asset format has no way to deal with such an eventuality. I believe that at least one of the MAV missing level of detail messages is due to this. I will have a look when I get some spare cycles. What happens if you force the uploader to generate fewer triangles than materials in the lower LODs? This. Simple test case - 8 faces, each a different material and color This was uploaded with the default generated LOD settings, which forced all the lower LODs down to 8 triangles. Low LOD. It looks like two triangles, one on each side. But mesh information says 8. Same thing in wireframe. Only two triangles. Unless maybe they're on top of each other? I'm not seeing the texture-fighting that usually happens when you have coincident triangles, so that's unlikely. Somehow, the uploader disposed of 6 of the 8 materials for the low LOD. But what did it do with them? It looks like the reduced mesh generator can get rid of unwanted materials, somehow. Even if we can't do that with manually generated LOD files. I left this object at Animesh1/145/212/23 on the beta grid if anyone wants to look at it.