Wavy pattern on chair error

Rhino
,
1

hello guys i was trying to create a wavy pattern on my chair , and i noticed that theres is a problem when i loft the final interpolated curves , there seems to be a little area that has some problems with the wave , any ideas why?

image
image831×585 142 KB

Chaise Nagami n°1.gh (13.7 KB)
Chaise Nagami n°1.3dm (496.8 KB)

2

The problem was the UV coordinates used to evaluate the surface.
Some of the points, after being modified, were outside the UV domain of the surface.
So just moving the points back in UV space solved this.
Chaise Nagami n°1_modified.gh (220.7 KB)

3

thank you so much sir!