Varient editing problem with Freelc characters

Kewipeao

I'm having a problem with some of the hero varients and the packfile manager

When i try and import/export the model into another program to edit it, it turns into a jumbled mess and a spike pyramid

This only occurs with the Freelc characters like shi xie or cao pi, But works fine with characters from any paid dlc or base game characters, Like dong zhuo or sun jian

It's strange because the models aren't broken in game and they look fine in the assembly kit, Its only when i try to bring them into
ultimate 3d unwrap that any issues occur and only with these models