Changing a mesh made the item invisible.

[Nazgren]

Hi,

There is a hood i have from one of my mods that i would like equipped on one of my companions but it clips with her hair. The clipping is minor but enough to require action. Due to the  Mod author being unlikely to adjust the item for my needs alone i decided to attempt to fix it myself using Outfit studio. I found the Mesh and increased the size of the hood in the places where the hair was clipping, exported it and then repacked it using Archive and replaced replaced the BSA in the data folder. However when i loaded up Skyrim the hood was now invisible. Is there some step i missed or is there a lot more work then this involved in such a minor change?

[JRCosta]

Probably the new mesh hasn't assigned the same body part as the original one. Open both in Nifskope, check the BSDismemberingSkinInstance for the mesh NiTriShape in both (expand the partitions line twice). Both should have the same body part.

 

Check screenshot for the line you have to compare and change: