Why do I see armor mesh in 3ds Max extracted from nude mod?

I managed to change edit texture with photoshop and wanted to try something new about modding the character model itself. But this nude mod I wanted to try on has a very different outlook when I opened it in 3ds Max(in psk). I tried obj and it's the same result. I also viewed it from Noesis and it was the same. The original costume in the game exported by Noesis is pretty fine. While the nude mod would show all the armor mesh from the costume the mod replaces. And only part of the armor mesh is showing with really buggy outlook. I will upload a screenshot when I get back home.

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OK. So here is the screenshot.

in Noesis:


in 3ds:


And the original has no problem in both softwares:


It is the Chris nude mod by Evillord I wanted to add something. I have not asked Evillord for permission as I do not intend to release it.
Can anybody help?