EDIT: My mod list:
Spoiler
Active Mod Files:00 Oblivion.esm01 Francesco's Leveled Creatures-Items Mod.esm02 Francesco's Optional New Items Add-On.esm03 Francesco's Optional New Creatures Add-On.esm04 Cobl Main.esm [Version 1.72]05 Progress.esm [Version 2.2]06 Unofficial Oblivion Patch.esp [Version 3.2.6]07 UOP Vampire Aging & Face Fix.esp [Version 1.0.0]08 Oblivion Citadel Door Fix.esp09 DLCShiveringIsles.esp0A Unofficial Shivering Isles Patch.esp [Version 1.4.0]0B Natural_Weather_by_Max_Tael.esp0C Natural_Weather_HDR_by_Max_Tael.esp0D Natural_Habitat_by_Max_Tael.esp0E Enhanced Water v2.0 HD.esp0F Natural_Water_by_Max_Tael.esp10 IWR-Lights.esp11 IWR-Windows.esp12 IWR-Shutters.esp13 AliveWaters.esp14 AliveWaters - Koi Addon.esp15 AliveWaters - Slaughterfish Addon.esp16 aaaBorsBedrolls.esp17 ClocksOfCyrodiil.esp18 ImprovedSigns.esp19 DLCHorseArmor.esp1A DLCHorseArmor - Unofficial Patch.esp [Version 1.0.5]1B DLCOrrery.esp1C DLCOrrery - Unofficial Patch.esp [Version 1.0.3]1D DLCVileLair.esp1E DLCVileLair - Unofficial Patch.esp [Version 1.0.5]1F DLCMehrunesRazor.esp20 DLCMehrunesRazor - Unofficial Patch.esp [Version 1.0.4]21 DLCSpellTomes.esp++ DLCSpellTomes - Unofficial Patch.esp [Version 1.0.1]22 DLCThievesDen.esp23 DLCThievesDen - Unofficial Patch.esp [Version 1.0.5]24 DLCThievesDen - Unofficial Patch - SSSB.esp [Version 1.0.4]25 Francesco's Optional Files.esp26 Cobl Glue.esp [Version 1.72]27 Cobl Si.esp [Version 1.63]28 BHC_Expanded.esp [Version 1.2]29 FenrirTheWolf.esp2A LetThePeopleDrink.esp [Version 2.5]2B Side's Sailing Ships.esp2C za_bankmod.esp2D DLCBattlehornCastle.esp2E DLCBattlehornCastle - Unofficial Patch.esp [Version 1.0.4]2F DLCFrostcrag.esp30 DLCFrostcrag - Unofficial Patch.esp [Version 1.0.4]31 Knights.esp32 Knights - Unofficial Patch.esp [Version 1.0.9]33 Natural_Vegetation_by_Max_Tael.esp34 RealisticFlora.esp [Version 2.7.0]35 RealisticFlora - DLCFrostcrag.esp [Version 2.7.0]36 Cliff_BetterLetters.esp [Version 1.1]37 gardening.esp38 Salmo the Baker, Cobl.esp [Version 3.08]39 Toggleable Quantity Prompt.esp [Version 3.1.1]3A ATakesAll.esp++ Borderless_Cyrodiil-3578.esp3B Quest Award Leveller.esp [Version 2.0.1]3C Quest Award Leveller - Vile Lair.esp [Version 2.1.0]3D Quest Award Leveller - Knights of the Nine.esp [Version 2.1.0]3E Alternate Start Revamped.esp3F MerchantsAlwaysBuyStolen.esp40 SM Combat Hide.esp [Version 1.2]41 No psychic guards v1.2.esp42 TRN One of the Gang.esp43 Enhanced Grabbing.esp [Version 0.5]44 Goranga restaurant job.esp45 MM_StolenHorseOwnership.esp46 nGCD.esp47 nGCD Oghma Infinium.esp48 ProgressGSD.esp [Version 2.0]49 ProgressMBSP.esp [Version 2.0]4A ProgressSBSP.esp [Version 1.0]4B ProgressRBSP.esp [Version 1.0]4C ProgressRacial.esp4D ProgressArmorer.esp [Version 1.0]4E Toaster's Legendary Skills & Stats.esp [Version 3.44]4F Toaster's Legendary Mastery.esp [Version 3.44]50 Francesco's level up mini mod - Slower skills x1.5.esp51 Cobl Races.esp [Version 1.52]52 Cobl Races TNR.esp [Version 1.53]53 Cobl Races TNR SI.esp [Version 1.53]54 Francesco's 10 days respawn time - 1-20 day lenght rescale.esp55 Cobl Silent Equip Misc.esp [Version 01]56 Streamline 3.1.esp57 Bashed Patch, 0.esp
One other thing: When in combat, NPC's sometimes repeatedly sheath/un-sheath their weapon saying 'where'd he go', and then move in little stutter steps....