Problem with MLoft+

I’m trying to loft two curves in grasshopper using Pythonic Mesh Loft Plus but for some reason I’m getting a rather strange output. Can’t for the life of me figure out what the problem is. Would really appreciate your help.

Mloft+ (8.2 KB)

Thanks in advance!

You are connecting polylines with a different segment count, so there’s no solution of pure quads (unless you start inserting new vertices to split the edges).
If you just need a triangulated mesh connecting those curves, you can do it like this