rigging control and spline

[Saturlag]

I create a simple cylinder spline animation and use this tutorial
https://dev.epicgames.com/documentation/en-us/unreal-engine/control-rig-spline-rigging-in-unreal-engine?application_version=5.3

When I activate “Fit chain on spline curve” the cylinder is deformed. What might be the issue?

[Saturlag]

solution:

“Fit chain on spline curve → Primary Axis → X” is 1 by default. Must be 0