I have just split out a surface and the new surface does not generate meshes properly. The 2 other surfaces are as expected but this one does not render in full. It also does not offset the .8mm into a solid properly. I have done this operation many times with good results.
I have had this problem in the past but do not remember how I fixed it. Help please.
RobbRenderMeshMess.3dm (198.4 KB)