This is a continuation of a thread in Serengeti:One end point of curve disappears when a particular middle-ish point is deleted
Rhino 7 has a significant bug. Delete the control point at the joint of a polycurve closest to the end of the polycurve and the control point at the end of the polycurve is also deleted. Attached file with several polycurves in blue and the same polycurves after control point deletion in green. Joints in the example are at cusps (G0 continuity).
Joinedcurvedeletebug11.3dm (1.6 MB)