OffsetSrf with bothsides and solid doesn’t seem to work after the last patch upgrade. Bothsides or solid are possible but not both at the same time. This seems to be true with the Rhino7 beta as well. Is this a bug? because i’m sure it was possible previously.
I just checked on Rhino 5 and the behavior there is the same as on Rhino 6 and now Rhino 7. When you pick
Solid, then you can’t have both sides.