Another Issue: I would have posted under SubD but its endless scrolling over there. Feel for you guys.
Issue is that when copy and pasting or exporting and importing a subD the creases lose their definition.
thanks for reporting, I can repeat this (on Mac only)
Although I don’t see this with exporting (yet)
RH-82577 SubD sharp edges are lost when copy-pasting
I exported this surface from the model and imported to a new file in Rhino8.
It went OK this time. Then I copied it and pasted it in the same file and lost the crease definitions (upper image).
The file 10mB if you want me to share it.
hi @tgra thanks. A model is not needed in this case, unless you have one that breaks when importing.