In the attached file, there are two identical polysurfaces, one is blue and one is orange. The blue has the default material assigned, the orange has a material called “Masonry sandstone light brown”. Both are on the same layer. When I copy and paste the orange poly surface, Rhino crashes every time. Copy and paste works properly with the blue poly surface with the default material. System info attached.
sysinfo.txt (4.8 KB)
material_crash.3dm (1.1 MB)