From SubD to Nurbs -> not clean :(

Hello Forum,

I have an easy SubD. But the baked Nurbs is not clean at some areas.
can i solve it wirth some settings?


on the pictures you van see the nurbs surface with the problem.

radar.3dm (5.4 MB)

best regards
nik

This might be a render mesh artefact you’re seeing

https://wiki.mcneel.com/rhino/meshfaqdetails