CC5 Character in UE5 - scalp and hair issues with morph targets

Hello everyone,

I’m having an issue with a character I created in CC5 and imported into Unreal Engine 5 using the “All in One” plugin.

The character works perfectly inside UE5, except for the hair and scalp. When the character moves its eyebrows or raises its forehead, the morph targets do not deform the scalp and hair mesh. I’ve tried multiple import attempts, as well as changing Unreal Engine and plugin versions, but the problem persists.
I also tried importing the standard CC5 character (Aaron) into UE5, and it has the exact same issue. To clarify, all deformations work correctly inside CC5.
There must be something in UE5 preventing the scalp and hair deformations from working properly… Has anyone encountered this same problem and could lend a hand? Thanks!