Struggling with trimming a surface with multiple curves

[shaun_c (Shaun)]

I have a surface with a point attractor design, I am trying to trim 600 square holes in a surface but i keep getting 600 surfaces with one hole in it. Ive been searching for a solution but none of them seemed to work.
file below.
thanks
pavilion shade.gh (20.6 KB)

[Quan_Li]

Seems OK.

[Joseph_Oster]

pavilion shade_2024_Jun15a.gh (11.7 KB)

[shaun_c (Shaun)]

:o wow thanks