This happens to you because you set up your wrinkle system incorrectly.
You’re seeing incorrect deformations because your wrinkle setup doesn’t include clamping.
That clamping prevents the wrinkle driving curves from going below zero in the material.
In the graph, you’ll always see negative values , both on the Metahuman and on your own mesh as well.
Check out my “Blender to Unreal Engine Wrinkle Maps Full Workflow Tutorial.”
This will solve your issue.