How to correctly place SplineMeshes along a vertical spline loop?

The Problem:

I’m spawning splinemesh components along a closed loop spline mesh. The Splinesmeshes look good however when the source spline flips over for the return the splinemeshes keep the same orientation.

How do I keep the splinemesh start and end locations/tangents while inverting them to not bend the track?

Thank you for your time^^