Encounter same issue described before, nanite wasn´t working on UE5.0.2, tried updating windows 10 to 21H1 and switching to vulkan. It works now, I can see the nanite triangles but on the other hand FPS are reduced by half and Mesh complexity is just crazy bad, now all nanite meshes are red when before they were all green. Do you also have this problem? What is going on? I have RTX 3080 with lastest drivers.