How to make differend surface profile on curve using loft/ sweptboss fitur, right steps?

This project i want to try make diferend profile surface in swepboss using loft but when i do it on the curve not successful. the curved cannot make the loft profil.

1 Answer

Hello Indra Purnama! I downloaded your file and it seems to me that the problem is in the profiles. I made some small change is and here is your loft