Mr.X disappear in game after modding

[superbombz]

I'm modding Mr.X to change model to another. But after export and push it to the game by Fluffy. Mr.X had disappear except a footstep sound. it look like everything work normally but only model has lost. it will appear again when he come close to me or punch on Claire. I'm not sure what is going on. But I think it's all about how i work on lodgroup it might be something i made a mistake. I don't know what i suppose to do to figure out. I need someone help.