I got this rather weird case, wonder if anyone may have an insight.
It is for this mod: https://www.nexusmod...tion/mods/41532
All pieces work fine except for the boots. Regardless of the weight of character wearing them, the game uses the 100 weight model. On a 0 weight character, the thigh bands are sorta 'floating' around the legs.
The boots are built in BodySlide to same body preset as other outfit pieces, and it is set to generate high/low weight. If I delete the heels_0 and _1 nifs from the directory, an then build, new files appear there.
If I preview in BodySlide and move weight slider to 0, I see the model shrink as expected. I imported the built top_0.nif in the studio and added the heels_0 nif on top of it - perfect fit.
The .esp is definitely pointed to those .nifs.
I thought that maybe the heels_0.nif being generated is somehow invalid and game ignores it. So I deleted heels_1.nif, and made a copy of heels_0.nif renamed to _1. OK, NOW they were snug on a 0 weight NPC. But of course clipped like crazy into a 100 weight one. Which proves that those ARE the nifs being used and that heels_0.nif is generated correctly. Just not used somehow.
I tried building the outfit to a different body preset. The body shape definitely changed, but again - boots snug only on weight 100, loose on weight 0. Tried the non-3BA version - same result.
I thought maybe game was bugged in general, but I tried several thigh boots from other mods. None of them have the issue. Proper fit at any weight.
Any ideas anyone? Thanks!