Can't split surface

Rhino6 SR16

Hi guys!
As you can test by yourself using these files

SplitErrorCurve.3dm (60.8 KB) SplitErrorSurface.3dm (113.6 KB)

I can’t split the red surface using the blue objects (curve or surface).
Rhino doesn’t find intersections.
Can you please tell me why?
Thanks! :slight_smile:

Hello - the surfaces do find an intersection but it is incomplete - try MakeUniform on the red surface, then try the trim.

Thanks for the report.
https://mcneel.myjetbrains.com/youtrack/issue/RH-53845

-Pascal

Thanks, @pascal! :slight_smile:
It works!
Anyway it seems to be a bug, isn’t it?