Problem with lighting all of a sudden

[Plaguerat10]

First, let me explain how it all came to be. I was running around the areas surrounding the Nuclear Test Site in the south of the map killing ghouls during the early morning while it was still dark. I then fast-traveled up north to the Gun Runners to sell some loot. It was now late enough in the morning for the sun to be up and, indeed, I could see the sun in the sky but the game was still dark. It's not just exteriors, either, interiors are extremely dark and it's very difficult to see. I just visited the Guardian Peak caves and it was literally pitch black, save for the few natural light-sources that exist down there. I checked the brightness-settings, restarted the game, it didn't work. I had not installed any mods before I sat down and played. I've been running the same mods for this entire playthrough with only a couple of newly added ones.

I thought to myself, "the problem arrived so suddenly, maybe it'll go away all of a sudden after a couple of in-game days?" I've been playing for a bit with this going on now, a few in-game days have passed but it has not reverted back to normal.

I deleted the ini-files in the FalloutNV folder and let them reset to no avail.

 

Here's the load-order

 

FalloutNV.esm

DeadMoney.esm

HonestHearts.esm

OldWorldBlues.esm

LonesomeRoad.esm

GunRunnersArsenal.esm

ClassicPack.esm

MercenaryPack.esm

TribalPack.esm

CaravanPack.esm

Lucky38Suite_Reloaded.esm

AWorldOfPain(Preview).esm

More Perks.esm

NPC Project.esm

NVInteriors_Core.esm

NVInteriors_WastelandEditon.esm

Project Nevada - Core.esm

Project Nevada - Equipment.esm

SomeguySeries.esm

Weapons.of.the.New.Millenia.esm

ELECTRO-CITY - CompletedWorkorders.esm

ELECTRO-CITY - Highways and Byways.esm

New Vegas Redesigned II.esm

Project Nevada - Rebalance.esp

Project Nevada - Cyberware.esp

Centered 3rd Person Camera.esp

The Weapon Mod Menu.esp

A Better Veronica.esp

PerkEveryLevel.esp

NewVegasBounties.esp

outsidebets.esp

rotfacetoriches.esp

More Perks Update.esp

Alternative Repairing.esp

Alternative Repairing - Breakdown Item Icons.esp

Alternative Repairing - Additional Campfires.esp

ammoingredientsloot.esp

MTB.esp

pipboy2500_edisleado.esp

PortableCampsite.esp

LFox Missing Ammo Recipes.esp

LFox Missing Ammo Recipes HH DLC.esp

LFox Missing Ammo Recipes GRA DLC.esp

Weapons.of.the.New.Millenia.Honest.Hearts.Grunt.Patch.esp

Weapons.of.the.New.Millenia.Leveled.Lists.esp

Weapons.of.the.New.Millenia.Store.esp

1nivVSLArmors.esp

Armored Duster.esp

Boacombat2glove.esp

boa ncrpahelmet.esp

Dark Justice Duster.esp

Roberts_NewVegas.esp

Sunglasses Shipment.esp

NVR- Lore version.esp

NVR- Recommended.esp

New Vegas redesigned- Honest Hearts.esp

My essential friends (animals).esp

RWD-NV v1.4 [standard Version].esp

Burning CampFire.esp

Easy Hacking.esp

LFox Bottle That Water.esp

WeaponModsExpanded.esp

WMX-AWOP-Overhaul.esp

EVE FNV - ALL DLC.esp

Type3MClothing_AddOn_only.esp

AWOP - Balance and Cleanup.esp

TFH Better Authority Glasses.esp

Scarred Race.esp

TFH Rugged Race.esp

Alternative Repairing - Ultimate Edition.esp

Alternative Repairing - Bottle That Water.esp

Alternative Repairing - NVInteriors.esp

DeadMoneyRealisticGoldBarWeight_10pounds.esp

FCO - GlowingOne.esp

MNK-RHINOgaussRevolver.esp

NPC Project - 188 Trading Post.esp

Total active plugins: 76

Total plugins: 76

FCO - GlowingOne is the only lighing-related mod I've recently added and I've already tried disabling it.

Hope that's detailed enough, I'd appreciate if someone could shed some light on this issue, pun intended.

Edit: I should probably add, I'm not using an ENB.

Edited January 11, 2015 by Plaguerat10