I'm using Robert's Male Body for New Vegas, and something is going wrong with it. The proper mesh appears in-game, but it's using the wrong texture and looks all mixed up and blotchy. Weirder yet though, if I view a character in the GECK they have both the proper mesh and texture.
Normally I would think this would have to be a mod conflict, but the only other cosmetic mod I have is Lings, which is an ESM (and still fully functional by the way). Not only that, but unlike the Oblivion counterpart of Roberts, it doesn't seem that the ESP portion of this mod is even necessary since it does not appear to actually re-route texture or model paths. Also, I'm using Geonax's Hero Race which I believe is made for Robert's, and that has the same texture issue on the body as the vanilla races.
I'm using the Default physique with boxers.

-Edit- I've tried disabling every single mod except the Robert one, and the issue is still there...

Here is my load order:
FalloutNV.esm
DeadMoney.esm
HonestHearts.esm
IWR.esm
IWS-Core.esm
AWorldOfPain(Preview).esm
MoMod.esm
Project Nevada - Core.esm
Project Nevada - Equipment.esm
ELECTRO-CITY - CompletedWorkorders.esm
Lings.esm
IWR - Rebuilt.esp
Cigarette.esp
OperationFixedTerrain.esp
Readius_NV.esp
Better Burned Man.esp
AWOP-MoMod.esp
IWS-MoMod.esp
XFO - 9a - Enemies - AI revamp.esp
XFO - 9da - Enemies - NPC Healing - low.esp
Project Nevada - Cyberware.esp
Project Nevada - Dead Money.esp
Project Nevada - Honest Hearts.esp
pnv.esp
RBDC - HH - Authentic Burned Man.esp
RBDC - HH.esp
RBDC - DM.esp
pnvprojectnevada.esp
pnvprojectnevadarebalance.esp
NewVegasBounties.esp
pnvnvbount1.esp
NV_STTraitsandPerks_Crunch - NVSE.esp
IWS-Core-Patrols.esp
IWS-Core-Guards.esp
IWS-Core-Civilians.esp
IWS-AS-LowSpawns.esp
IWS-AS-NoInteriorSpawns.esp
NoFastTravel_NV.esp
Game_NV_MotorcycleTravelAdvMapMarkers.esp
Geonox_Riot_Armor.esp
Geonox_Wasteland_outfits.esp
ATT BoSCombatJacket.esp
Geonox_Wasteland_Shirt.esp
Roberts_NewVegas.esp
TSoutfitv1.esp
Cassidy0.4E.esp
Veronica0.6E.esp
Boone0.2.esp
dD - Enhanced Blood Main NV.esp
LFox Bottle That Water.esp
WeaponModsixpanded.esp
Project Nevada - WMX.esp
EVE FNV.esp
Nevada Skies.esp
Interior Lighting Overhaul-Realistic Interiors-Full.esp
ILO-RI-Dead Money.esp
ILO-RI-Honest Hearts.esp
ILO-RI-PipBoy Light.esp
Project Nevada - Rebalance.esp
theHeroNV_1.1.esp

Total active plugins: 60
Total plugins: 61

Sounds like an issue with Archive Invalidation. Toggle it off and back on with FOMM, that fixes such bugs for me everytime.

That fixed it, thanks. I just had to deactivate and reactivate the Archive Invalidation, just like you said.