Hi, I know I’m too late for this. But this is what I did for a uniform speed for when an object follows a spline.
I used a timeline, to lerp from 0 to 1,as the distance in the “Get location at distance along spline” and then I set the playrate of the timeline to “Speed/SplineLength”. Below is my setup.
Once the timeline is complete if another spline is found an event to play timeline from start will be triggered.