Blend tree does not work with root motion animation

hi

I have a weird problem about setting up the root motion in the blend tree.
I don’t understand why the root motion animation is not moving in the preview window when I use the blend tree system, but that animation does move outside of the blend tree system, I just could not find any solution for that. With that, I can not use the root motion to navigate my enemy character on the scene.

I have recorded a short video to indicate the problem, please click the below link for reference.
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Thank You!

I created new scene and thing are working fine, so this is just a little unity bug on the preview window, not an actual problem, now problem fixed