Closest Point on a curve spline.

[Random]

Hi everyone,

   I'm new using Curvy plugin. I want to get the closest point on a spline from an arbitrary point in the space but I'm stuck. 

   I've created a closed curvy spline. When the game starts, I create a sphere in the world and then I look for the nearest point. I'm using the method curvySpline.GetNearestPointTF(spherePosition) but it always return -1.

   What am I doing wrong?

Thanks in advance.