When I create curves from scratch, my rails node works perfectly.
When when I generate those curves procedurally (extracting from edges in separate pieces of geometry), I can't get it to work, even though everything (point count on each rail, point order) looks right to me.
Instead of connecting the cross section from the first point in one rail to the first point in the second rail, it's connecting the first point in one rail to the last point in the other! Sorting the rail points seems to have zero effect.
I've attached a screenshot showing the point numbers on each rail (after merging), and a hip example file with the problem. I froze the procedural curves so I didn't have to include the geometry they're coming from. If you replace the procedural rails with the hand-created ones, you can see how it works properly.
Thanks, any help is really appreciated. I really want to keep the whole thing procedural!
