look at the scene:
You can see avatar Jack Dayriel with hairstyle on the left side. Jack has hairstyle parented with his armature - specificaly head bone. It works.
You can see avatar Ben Coldman without hairstyle on the right side. When I want to parented his hairstyle with his armature - specificaly head bone, the hairstyle jumps?
Any ideas? File in annex
Big thanks for advice