Invisible armour - any ideas what's causing it? SOLVED

[gnewna]

For some reason, some armoured NPCs are showing up with either their greaves, cuirasses or both invisible/missing. Any idea what I can do to fix this? Example:

http://steamcommunity.com/id/gnewna/screenshot/3298073806010651614

I don't have any mods that should affect armour (unless Cobl does??) and I reinstalled my game and all my mods yesterday, didn't have this problem before. The Legion Guard in the Imperial City (waterfront tunnel, added by Better Cities) only have hands, feet and heads, and the Skingrad Guards have no legs. It's kind of creepy!

I installed my mods with OMM (aside from a couple that were manualy installed) as Wrye Bash kept reactivating things I didn't want reactivating and I couldn't really get my head around it. I want to figure it out at some point, but not right now. Mod list:

00 Oblivion.esm
01 Cobl Main.esm [Version 1.72]
02 Better Cities Resources.esm [Version 5.4.1]
03 Cobl Races TNR.esp [Version 1.53]
04 Cobl Races TNR SI.esp [Version 1.53]
05 Unofficial Oblivion Patch.esp [Version 3.4.5]
06 UOPS Additional Changes.esp
07 UOP Vampire Aging & Face Fix.esp [Version 1.0.0]
08 Oblivion Citadel Door Fix.esp
09 DLCShiveringIsles.esp
0A Unofficial Shivering Isles Patch.esp [Version 1.5.3]
0B USIPS Additional Changes.esp
0C Better Cities .esp
0D DLCHorseArmor.esp
0E DLCHorseArmor - Unofficial Patch.esp [Version 1.0.8]
0F DLCOrrery.esp
10 DLCOrrery - Unofficial Patch.esp [Version 1.0.5]
11 DLCMehrunesRazor.esp
12 DLCMehrunesRazor - Unofficial Patch.esp [Version 1.0.6]
13 DLCSpellTomes.esp
14 DLCSpellTomes - Unofficial Patch.esp [Version 1.0.1]
15 Cobl Glue.esp [Version 1.72]
16 Cobl Si.esp [Version 1.63]
17 Cobl Tweaks.esp [Version 1.44]
18 EM_CompInnsleeping.esp [Version 0.9]
19 TinyHouse.esp
1A COBLaddonTinyHouse.esp
1B DLCFrostcrag.esp
1C DLCFrostcrag - Unofficial Patch.esp [Version 1.0.8]
1D Frostcrag Village.esp [Version 1.0.7]
1E Alternative Start by Robert Evrae.esp
1F SupremeMagicka.esp [Version 0.90b]
20 SM_ShiveringIsles.esp [Version 0.90]
21 SM_DLCSpellTome.esp [Version 0.90]
22 SM_COBL.esp [Version 0.90]
23 SM_EnchantStaff.esp [Version 0.90]
24 SM_NoSpellLights.esp [Version 0.90]
25 Oblivion XP.esp
26 1em_Vilja.esp [Version 4.04]
27 Cobl Races.esp [Version 1.52]
28 Cobl Races - Balanced.esp [Version 1.52]
29 Better Cities Full.esp [Version 5.4.1]
2A Better Imperial City.esp [Version 5.4.0]
2B Better Imperial City FPS Patch.esp
2C Cobl Silent Equip Misc.esp [Version 01]

(Sorted with BOSS, as I've been told that LOOT isn't really ready for Oblivion yet, though I use it for Skyrim. Certainly when I was initially using LOOT it had a very different load order, all the UOP files were together quite far from the files they were patching, etc.)

EDIT - in case this comes up when someone else has the same problem and googles it, I realised that I hadn't updated my archiveinvalidation.txt file after reinstalling the game/mods and not bothering to reinstall a couple of armour retextures. Didn't occur to me for a while, as the invisible armours were completely different to the ones I had had retextures for, but when I took those lines out of the file, the guards miraculously had bodies again.