Retarget Animations not working correctly

Hello,
I want to create a Static Mesh of a clothed Metahuman performing an animation(stops at a specific pose), so I followed the steps from the YouTube video below in order.

I managed to create a Skeletal Mesh by copying the bones from the original Metahuman Skeletal Mesh, and then retargeted an animation sequence downloaded from Mixamo.

However, the animation does not play correctly — instead of moving as intended, the Metahuman just wobbles as a whole.

When I apply the animation, several error messages appear. However, even after searching for those keywords, I wasn’t able to find an appropriate solution.
If anyone could offer some advice, I would really appreciate it.
Since my English is not very good, I used a translator.

You can manually create their respective IKRig and IKRetargeter to further investigate the issue. It is initially estimated that one of the character’s IKRigs might not be able to automatically configure all the bone chains.