Thank you Julian 
I had this settings on the exportation, I have tryed some different schemes to find the right one but it seems that I´m having the same problem. Is it possible to be related with the curve tesselation parameters?
Thank you Julian
I had this settings on the exportation, I have tryed some different schemes to find the right one but it seems that I´m having the same problem. Is it possible to be related with the curve tesselation parameters?