RIR Inconsistent beam orientation

Rhino.Inside Revit
1

I’m using lines to place some beams in revit but their profile orientation is inconsistent.
As far as I can tell there is no meaningful difference between the lines and I expect somewhat consistent orientation of the profile in plan. The problem is that I need to rotate them afterwards (changing the cross-section rotation parameter) but cannot differentiate between their initial positions. I couldn’t get anywhere using Element Location component.

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image1251×102 789 Bytes

beams.gh.rvt (704 KB)
beams.gh (13.2 KB)

2

Using an Line SDL provides a consistent start point for the line. Controlling Rotation on a curve can be tricky (it doesn’t inherently have a rotation base plane)

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image1214×398 57.7 KB

3

I understand that, but my curves have consistent start end points, consistent direction, yet the result from the beam component is inconsistent.

4

Maybe you can check if the curve frames are consistent or not ?