Loft could not be constructed

I tried to loft a profile but fail to do so. I had orientated the poly line onto the plane and fail to loft. I had also check that all poly line are closed loop. Please help! (88.2 KB)


And in R5, R6 Subtraction.

Probably need to flatten your Loft input? Or use PShift (Shift Paths)?

What do u mean R5, R6? Still same error, i suspect there is an issue with the data(points) feeding into LOFT! (92.4 KB)

Rhino version.

Loft with “Straight” or “Uniform” option would work. (82.7 KB)