(UE5) retarget pose edit problem

Development Character & Animation
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1

When I edit the retarget pose(Picture 1),after adjustment, click the edit button
The pose will change itself(Picture 2).
The charator is imported from daz studio , Genesis8.1.

Picture1:

1
1447×867 31.4 KB

Picture2:

2
2380×915 307 KB

Thanks!

2

When i finish editing ，the thighs bend itself.