how to repeat:
_3dFace (SubD, Quad, Single)
_extractControlPolygon
will not result in a single mesh face but in 36 faces-Mesh
the subD box behaves like expected.
Hi Tom - I see this, thanks.
RH-80313 ExtractControlPolygon from subD face
-Pascal
RH-80313 is fixed in Rhino 8 Service Release 5 Release Candidate