Use the same model portrait not work

[l3c0gkkak]

Hello everyone
I use the custom model with hero Uther :

Human DeathWing Reforged

Deathwing the Destroyer, formerly known as Neltharion the Earth-Warder, was one of the five Dragon Aspects and leader of the black dragonflight. Ages ago, Neltharion was empowered by the Pantheon with dominion over the earth and the deep places of Azeroth. However, driven mad by the Old Gods, he...

www.hiveworkshop.com

It’s same art model Uther. I create new hero with this custom model and use another sound and my base portrait Uther not work, his mouth not move . Sorry my english not good, someone help me, thx
Have a good day