Export a control rig object with animation attached to a camera rig rail UE5

Development Character & Animation
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1

I have made a rig of a car and it’s attached to a camera rig rail. How to export this animation correctly?
I’ve tried bake transform but the rig lost the attached rig rail and doesn’t follow anymore and the fbx is wrong.
Can anyone help with this?
UE5.3

2

Have you find a solution? I’m having exactly the same problem T.T