Problem with isotrim and project loft together

Hi, I’m working on a parametric texture surface using grasshopper.
I tried to loft the Isotrim surface and projected surface together but it didn’t work. What am I doing wrong?

parametric design (11.5 KB)
parametric design 3.3dm (3.8 MB)

You can’t loft grafted surfaces and it doesn’t make sense to loft them either?

sorry my wrong, I mean lofting the Projected surface.

I spoke too soon - like this?

parametric design (13.0 KB)

What is the Rhino file for?

oh god, I solved it! thank you so much!!!