There are conditions.
・EnableRootMotion is true.
・Adidive Anim Type is Mesh Space or Local Space.
[Link Removed]
1. Please open the attached project.
2. Open the file.『Aim_Space_Hip』
3. Edit the curve(Attach an image) [Image Removed]
Result:Scale of preview is not displayed as 0.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-60019 in the post.