Animation becomes strange when I put it in UE4 from blender

Development Character & Animation
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1

I’m using Google Translate.
When I put it in UE4 from blender, my legs look like they are crushed.
There was no problem with blender.
I put in a running animation before this, but it worked fine on UE4.
How can I resolve this issue?
The video is a comparison of blender and UE4Problem part