This must be a bug. In grasshopper for Rhino 8, print width of a line returns the wrong value.
you are supplying a curve to the Print Width input that wants a Print Width object type:
try this, I have set Print Width to 10 manually in Rhino to see it reflected in GH
this is an awesome video that touches the R8 new stuff
Ah, I see, thank you inno. My bad.
Hey inno, do you by any chance know the unit of rhino line weight? Is it by pixel or mm?