Voronoi Map Surface Failing

Hi! 

Can somebody help me out? Im trying to get a voronoi pattern onto a curve surface, using the Map to Surface component, I works perfectly when I use the voronoi normally, but when adding attractor curves, the voronoi seems to appear a number of times (as if it was offsetted) as seen in the picture below.. Can somebody help me get just the normal pattern? I think maybe its a problem of a flatten or a graft.. 

Thanks so much!