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About the problem that the object on RigRail seems to shake jerky!

Hi.
I have a question about a scene using two Rig Rails.
Place the object on the first Rail and
If you shoot with the camera from the second Rail,
As you can see in the video, the object looks jerky and swaying.
Is there a way to fix this?

Here is how to reproduce it.
① Make a Rig Rail and make Cone a child
② Copy the Rail of ① and make the camera a child
③ Take a picture of Cone by slightly shifting the movement speed of ① and ②.

When I changed the speed a little, the shaking became even more intense, so
I will also add this video for reference.

Solved by splitting the spline segment. Thank you.

https://forums.unrealengine.com/core/image/jpeg;base64