Texture broken after merging 2 armors into one

[RAAS23]

Hi everyone, I tried to merge Ancient nord armor into a guard armor.

 

Both are 3BBB body type so I just open two nif file in each ShapeData folder using Nifscope. Then copy every meshes from Ancient Nord to Guard armor. Finally use BodySlide to build the armor.

 

Everything looks good in NifScope and BodySlide preview.

 

 

But the armor doesn't look like the same in game. The texture of Ancient Nord is corrupted.

 

 

 

Here's the link of these 2 mods.

 

Guard Armor is from: BD's Armor and Clothes Replacer - CBBE 3BA (3BBB)

Ancient Nord: Ancient Nord Chainmail SE - CBBE 3BBB Bodyslide

 

Any idea on this problem? Thank you so much!