Loft from 2 surface edges

Hi, i’m trying to generate a loft from 2 surface edges, one of them created from a points grid moved in the z direction.
The community already solved the problem time ago, in my previous and only topic created and i’ve tried to solve the same problem in my new exercise in the same way as before but it doesn’t work.

Here’s the image that i used to move my points grid

Here’s the process

Here’s the old discussion