I somehow managed to create an open curve which has strange behavior.
Running _TrimCurve on it with a setting of 8 segments, results in 7 segments.
One of the 7 segments is of double length. It failed to divide.
Multiples of 8, such as 16, 24, and 32 also fail to divide all of the segments. Approximately 1 or 3 segments are lacking.

This strange curve, as an open cone, came up while testing _ObliqueConeUnwrap script, which works for a right circular cone, but not for
an oblique cone, (yet). :-) The shape of the Net is not quite right...

- Brian