Can Edge Softening be accidentally removed from the Properties panel? This is happening on one pc in the classroom, but none of the others. You can see that Thickness, Shut Lining and Displacement are also missing.
The object selected is just an extrusion, nothing else. Same issue with polysurfaces. The same .3dm shows file works fine on other pc’s, so it’s not the .3dm or the geometry.
Rhino 6 sr16.