Deformed mesh after saving it in CK?

[Thehunteroftruth]

Hello there, as title says i'm having problems with meshes i'm saving up in ck, when i do test them in game they do clip like crazy and i have no idea why. These meshes came from other mods, I just separated them in bodyslide and changed the bodyslot. Both show up fine in OS and in the original mod. 

Any idea what may cause that? Thanks in advance for help!