I'm running into an issue with a very simple RC object (all settings are default):
Here it is sweeping along a spline with one corner, as expected:
HOWEVER, if I divide one of those splines, adding several vertices without affecting it's overall vector, weird stuff happens:
If I move one of the vertices just a tiny bit, so its angle does not equal exactly 180 degrees, the behavior returns to what is expected up to that vertex. Any clue what's going on? I'm attaching the scene as well, MAX 2016, vray 3.3, RC 2.6.