Metahuman animator heads floating like neck broke

Hello!
I’m facing a strange issue. Before I never seen this one, my wokflow worked perfectly before.

Im using the same process like in this video: https://www.youtube.com/watch?v=hZ2mkcd4C7M&t=465s

When I try to apply the animation to the metahuman head, weird issues happening. Always different. In the video I will attach its like the character broke its neck. Other times the jaw got sucked into his skalp etc… What could be the problem? The metahuman is as fresh as you can download from quixel bridge. https://youtu.be/4NoobsHrhnI

This is a simple export from metahuman performance, I tried using the level sequence as well, but similar results!

thank you!

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(post deleted by author)

The link is broken. Can you share the solution?