Reference Curve by Curve Null








Any reason what seems to be a perfectly good curve would turn into a null when passed through a ModelCurve.ReferenceCurveByCurve (or a ModelCurve.ByCurve) node it throws a null on tow of the curves. From the image you will notice that I actually have two groups of curves and this does not happen on the other group. I have also not had this problem when running it on other surfaces. Any ideas?




What is the error message you are getting? Are all of your curves planar? (check with Curve.IsPlanar)