Why Is This Loft Getting An Error Message?

[ljwoolf]

[ljwoolf]

Background info: I believe the issue is with that top triangle there. I tried making that triangle in a normal, vertical sketch. I tried making it in a sketch on a plane that's on the axis I'm using as a guide rail. I also tried basing the plane off of the edge of the coil that it's near, and then rotating the plane until it seemed perfectly aligned to the coil. That's what you're seeing here. Every time, I got the error message about rails being tangent to profile. (Although in this instance, I also got an issue with bad geometry.) Does anyone know what the issue is and how I can get my rails perpendicular to my profile? I'll attach my file for more info