"Gekko tried to pickpocket Imperial Legion Forester,
but Imperial Legion Forester didn't care"
now it's pretty obvious this is caused by bad mod interation, but I have no idea which mods could do this.
Thankfully I'm only using well-known mods so I hope someone else had already stumbled into this before, and found out what causes it.
Thanks in advance for the help, I'm really baffled here

Active Mod Files:
Spoiler
00 Oblivion.esm01 Cybiades.esm [Version 2.0]02 Windfall.esm03 All Natural Base.esm [Version 1.34]04 Francesco's Leveled Creatures-Items Mod.esm [Version 5.0]05 Francesco's Optional New Items Add-On.esm [Version 5.0]06 Cobl Main.esm [Version 1.73]07 Oscuro's_Oblivion_Overhaul.esm [Version 1.34]08 Mart's Monster Mod.esm [Version 3.7b3p3]09 Waalx Animals & Creatures.esm0A VASE - core.esm0B FCOM_Convergence.esm [Version 0.9.9MB3]0C Armamentarium.esm [Version 1.35]0D Artifacts.esm0E Hemingweys Capes Improved.esm [Version 3.0b]0F Kvatch Rebuilt.esm10 Fundament.esm [Version ision]11 NNWAEMaster.esm12 John's Leveled List Overhaul.esm13 The Arsenal.esm++ DaedricHelmFIX.esp14 Unofficial Oblivion Patch.esp [Version 3.4.1]15 UOPS Additional Changes.esp16 DLCShiveringIsles.esp17 Unofficial Shivering Isles Patch.esp [Version 1.5.0]18 USIPS Additional Changes.esp19 SM Plugin Refurbish - SI.esp [Version 1.30]1A Francesco's Creatures and Items Resources.esp [Version 5.0]1B Francesco's Optional Chance of Stronger Bosses.esp [Version 5.0]1C Francesco's Optional Chance of Stronger Enemies.esp [Version 5.0]1D Francesco's Optional Chance of More Enemies.esp [Version 5.0]1E Francesco's Optional Leveled Guards.esp [Version 5.0]++ FranDarkSeducerWeapFix.esp++ FCOM_Francescos.esp [Version 0.9.9]++ FCOM_FrancescosItemsAddOn.esp [Version 0.9.9]1F FCOM_FrancescosNamedBosses.esp [Version 0.9.9]20 Fran Armor Add-on.esp21 Fran_Lv30Item_Maltz.esp22 All Natural.esp [Version 1.34]23 All Natural - SI.esp [Version 1.34]++ All Natural - MMM Patch.esp [Version 1.3]24 Immersive Interiors.esp [Version 0.8.1]25 Idle Dialogue.esp [Version 1.3]++ Symphony of Violence.esp26 Rainbows.esp27 All Natural - Real Lights.esp [Version 1.34]28 WindowLightingSystem.esp29 Ayleid Loot EXtension.esp2A Ayleid Loot EXtension - OOO Dungeons.esp++ shiveringislesdoorusable.esp2B Enhanced Economy.esp [Version 5.4.3]2C Display Stats.esp [Version 2.0.1]2D DropLitTorchOBSE.esp [Version 2.4]2E Duke Patricks - Friendship Ring For Companion Detection.esp [Version 1.8]2F kuerteeCleanUp.esp30 Quest Log Manager.esp [Version 1.3.2]31 Streamline 3.1.esp32 Vacuity.esp [Version 0.2]33 Dynamic Map.esp [Version 2.1.1]34 Map Marker Overhaul.esp [Version 3.9.3]35 Map Marker Overhaul - SI additions.esp [Version 3.9.3]36 DLCHorseArmor.esp37 DLCHorseArmor - Unofficial Patch.esp [Version 1.0.5]38 SM Plugin Refurbish - HorseArmor.esp [Version 1.11]39 DLCOrrery.esp3A DLCOrrery - Unofficial Patch.esp [Version 1.0.3]3B SM Plugin Refurbish - Orrery.esp [Version 1.11]3C DLCVileLair.esp3D DLCVileLair - Unofficial Patch.esp [Version 1.0.5]++ SM Plugin Refurbish - VileLair.esp [Version 1.21]** VileLair_MOBS.esp [Version 2.0]3E DLCMehrunesRazor.esp3F DLCMehrunesRazor - Unofficial Patch.esp [Version 1.0.4]** Mehrunes_MOBS.esp [Version 2.0]40 SM Plugin Refurbish - MehrunesRazor.esp [Version 1.30]41 DLCSpellTomes.esp++ DLCSpellTomes - Unofficial Patch.esp [Version 1.0.1]42 Adonnays Elven Weaponry for NPCs.esp43 ClassyClothingCompendium.esp44 PTArtifacts.esp45 SentientWeapon.esp [Version 3]46 Thieves Arsenal.esp++ Thieves_Arsenal_Patch_033010.esp47 XiaNewAmuletsV1.esp48 Athletics While Riding.esp49 kuerteeHorseCommands.esp4A Dude Wheres My Horse.esp4B Weapon Expansion Pack for Oblivion Nthusiasts.esp [Version 1.03]4C DLCThievesDen.esp4D DLCThievesDen - Unofficial Patch.esp [Version 1.0.5]4E SM Plugin Refurbish - ThievesDen.esp [Version 1.30]** ThievesDen_MOBS.esp [Version 2.0]4F KDCircletsOOOOptimized - NPC Equip.esp [Version 1.2]++ FCOM_KDCircletsOOOOptimizedNPCEquip.esp [Version 0.9.9]++ MMM_Runeskull_Rebalance_BETA2.esp [Version Beta]50 Slof's Oblivion Robe Trader.esp51 Cobl Glue.esp [Version 1.73]52 Cobl Si.esp [Version 1.63]53 Bob's Armory Oblivion.esp54 FCOM_BobsArmory.esp [Version 0.9.9]55 Loth's Blunt Weapons for Npcs.esp++ FCOM_LothsBluntWeapons.esp [Version 0.9.9]56 Oblivion WarCry EV.esp [Version 1.09]57 FCOM_WarCry.esp [Version 0.9.9MB5]58 Oscuro's_Oblivion_Overhaul.esp [Version 1.34]++ OOO-DLT_Remover.esp [Version 1.33]++ OOO_XiaNewAmulets Addon.esp [Version 0.5]59 Hemingweys Capes Improved for FCOM.esp [Version 3.0b]++ Hemingweys FCOM NPC Capes Improved IC Guards.esp [Version 3.0b]++ Hemingweys Capes for FCOM_FrancescosNamedBosses.esp [Version 3.0b]** OMOBS_SI.esp [Version 2.0]++ ArmamentariumLLVendors.esp [Version 1.35]++ Adonnays Elven Weaponry for NPCs - Armamentarium piggyback.esp** John's Leveled List Overhaul.esp++ John's Leveled List Overhaul - Cyrodillic Armors.esp++ John's Leveled List Overhaul for OOO.esp5A OOO 1.32-Cobl.esp [Version 1.72]++ The Arsenal - Leveled Lists for OOO.esp5B Mart's Monster Mod - Additional Enemy NPC Vars.esp [Version 3.7b3p3]5C FCOM_Convergence.esp [Version 0.9.9Mb3]++ FCOM_EntropicOrderRebalance.esp [Version 0.9.9beta2]5D FCOM_RealSwords.esp [Version 0.9.9]++ FCOM_DurabilityAndDamage.esp [Version 0.9.9]++ FCOM_SpawnRatesStronger.esp [Version 0.9.9Mb3]++ FCOM_LessRats.esp [Version 0.9.9]++ FCOM_LessReaversInGates.esp [Version 0.9.9]5E Mart's Monster Mod - Extra Wounding.esp [Version 3.7b3p3]++ Mart's Monster Mod - Looting NPCs & Creatures.esp [Version 3.7b3p3]++ Mart's Monster Mod - Less Bone Loot.esp [Version 3.7b3p3]5F Mart's Monster Mod - Safer Quest Locations.esp [Version 3.7b3p3]60 Mart's Monster Mod - Dungeons of MMM.esp [Version 3.7b3p3]61 Mart's Monster Mod - Hunting & Crafting.esp [Version 3.7b3p3]62 Mart's Monster Mod - Farm Animals.esp [Version 3.7b3p3]++ VASE - Cyrodiil for MMM.esp++ VASE - Vanilla SI.esp++ Mart's Monster Mod - Slof Horses Complete.esp [Version 3.7b3p3]++ Mart's Monster Mod - DLCHorseArmor+Slofs .esp [Version 0.91]++ Mart's Monster Mod - Diverse Runeskulls Loot OOO.esp [Version 3.7b3p3]63 kuerteeWanderingEncounters.esp++ FCOM_DiverseGuardUnity.esp [Version 0.9.9]++ FCOM_BobsGuardUnity.esp [Version 0.9.9]++ FCOM_HungersUnitySI.esp [Version 0.9.9]** FCOM_Archery_Armamentarium.esp++ FCOM_Archery_Artifacts.esp** FCOM_Archery_RealSwords.esp++ FCOM_Archery_MMM_H&C.esp++ FCOM_MoreRandomSpawns.esp [Version 0.9.9]++ FCOM_MoreRandomItems.esp [Version 0.9.9]++ Mart's Monster Mod - Shivering Isles.esp [Version 3.7b3p3]++ ArmamentariumLL4OOO.esp [Version 2.01]++ ArmamentariumLLMagicOOO.esp [Version 1.35]++ SentientWeapon - OOO & MOBS.esp [Version 3.1]++ MMM-Cobl.esp [Version 1.73]++ DiverseDremoraFemales.esp [Version amped]** DiverseDremoraArmorFCOM.esp [Version 0.95]64 WAC - ItemLootFix4v1.0bMMMorFCOM.esp++ WAC - WeaponReachMOBS.esp65 WAC.esp66 WAC - OverSpawn.esp67 WAC - OverSpawn4v1.0bFCOM.esp68 WAC - BlackBootDungeon.esp69 WAC - Dead Knights.esp6A WAC - Dead Knights Fix.esp6B WAC - Player Summons.esp++ WAC - Horses.esp6C WAC - TCOS.esp6D WAC - TCOSFix4v1.0b.esp6E WAC - Legion.esp6F WAC - Magic.esp70 Ivellon.esp [Version 1.8]++ Artifacts - ArmaCompleteAddon.esp [Version 1.0]71 BrotherhoodRenewed.esp [Version 1.1.2]72 Kragenir's Death Quest.esp [Version 2.11]73 KDQ - Rural Line Additions.esp74 Kvatch Rebuilt.esp++ Kvatch Rebuilt - OOO Compatibility.esp75 Kvatch Rebuilt - Leveled Guards - FCOM.esp76 Kvatch Rebuilt Weather Patch.esp77 EiAmod.esp [Version 1.1]++ EiAmod_ShiveringIsles.esp++ EiAmod v1.2 Delayer.esp [Version 3.1]78 LostSwordOfTheAylied.esp++ LostSwordOfTheAylied - OBSE Add-On.esp79 NNWAREAyleidDungeons_Series1EV.esp [Version 2.2b]7A NNWAEDungeons-Series2EV.esp7B NNWARE06-RhyeliaEmeroEV.esp7C Quest For The Elements.esp7D The Ayleid Steps.esp [Version 3.4.1]7E VHBloodlines 1.2.esp [Version 1.5.6]7F Windfall.esp80 DLCBattlehornCastle.esp81 DLCBattlehornCastle - Unofficial Patch.esp [Version 1.0.4]82 SM Plugin Refurbish - Battlehorn.esp [Version 1.30]** Battlehorn_MOBS.esp [Version 2.0]83 DLCFrostcrag.esp84 DLCFrostcrag - Unofficial Patch.esp [Version 1.0.4]++ Kvatch Rebuilt + Frostcrag Spire Teleport Patch.esp [Version 1.0]85 SM Plugin Refurbish - FrostCrag.esp [Version 1.2]86 BrumaGuildReconstructed.esp [Version 1.0.1]87 Knights.esp88 Knights - Unofficial Patch.esp [Version 1.0.9]++ SM Plugin Refurbish - Knights.esp [Version 1.06]89 Cybiades.esp [Version 2.1]8A CybiadesDungeon.esp [Version 2.1]++ cybCrashFix.esp++ Cybiades v2.1 Delayer.esp [Version 3.1]8B TOTF.esp8C TOTF-EiAE Patch.esp++ TOTF Delayer.esp8D RTT.esp8E RTT-Weye Relocation Patch.esp [Version 2.0.1]8F The Lost Spires.esp++ The Lost Spires v14 Delayer.esp [Version 3.1]90 Mighty Umbra.esp91 Blood&Mud.esp++ Blood&Mud - EE patch.esp [Version 4.2]92 AFK_Weye.esp [Version 2.32.Non-COBL]93 Shadowcrest_Vineyard_COBL.esp94 Shadowcrest_Vineyard_GuardCOBL.esp++ FCOM_MightyUmbra.esp [Version 0.9.9]++ FCOM_Blood&Mud.esp [Version 0.9.9]++ FCOM_Knights.esp [Version 0.9.9Mb3]++ FCOM_SlofsRobeTrader.esp [Version 0.9.9]95 road+bridges.esp [Version 4.6.3]++ Hemingweys Capes for NRB.esp [Version 3.0b]++ NRB4+Vineyard Patch.esp [Version 1.0.1]++ NRB4+QFE Patch.esp [Version 1.0]96 Damarask.esp [Version 1.02]97 Faregyl.esp [Version 2.0.9]98 Feldscar.esp [Version 1.0.13]99 Gottshaw Village.esp [Version 1.0]9A Molapi.esp [Version 1.0.1]9B Reedstand.esp [Version 1.0.4]9C ShezriesTownsMaster.esp9D LostSpires+PellsGate Patch.esp [Version 1.0]9E Urasek.esp [Version 1.0.4]9F Vergayun.esp [Version 2.0.2]A0 Villages1.1.espA1 xuldarkforest.esp [Version 1.0.5]++ LostSpires-DarkForest patch.esp++ WAC-ULdarkforest-patch.espA2 xulStendarrValley.esp [Version 1.2.2]A3 xulTheHeath.espA4 XulEntiusGorge.esp [Version 1.2.1]A5 xulFallenleafEverglade.esp [Version 1.3.1]++ LostSpires-Everglade patch.espA6 xulColovianHighlands_EV.esp [Version 1.2.2]A7 xulChorrolHinterland.esp [Version 1.2.3]++ WAC-ULchorrolhinterland-patch.espA8 xulBeachesOfCyrodiilLostCoast.esp [Version 1.6.5]A9 WAC - xulBCLostCoast.esp++ LostCoast + Cybiades Patch.esp [Version 1.0]AA xulBravilBarrowfields.esp [Version 1.3.4]AB xulLushWoodlands.esp [Version 1.3.2]AC xulAncientYews.esp [Version 1.4.4]AD SentientWeaponII-AncientYews patch.espAE xulAncientRedwoods.esp [Version 1.6]AF xulCloudtopMountains.esp [Version 1.0.3]B0 Ravenview-Cloudtop-Patch.esp [Version 2.0]B1 xulArriusCreek.esp [Version 1.1.4]B2 xulPatch_AY_AC.esp [Version 1.1]B3 LostSwordoftheAyleids-ArriusCreek patch.esp++ AFK_Weye Arrius_Creek Patch.espB4 xulPantherRiver.espB5 Blood&Mud-PantherRiver patch.espB6 xulRiverEthe.esp [Version 1.0.2]B7 xulBrenaRiverRavine.esp [Version 1.1.1]B8 xulImperialIsle.esp [Version 1.6.8]B9 xulBlackwoodForest.esp [Version 1.1.0]BA xulCheydinhalFalls.esp [Version 1.0.1]BB Blood&Mud-CheydinhalFalls patch.espBC TearsOfTheFiend-CheydinhalFalls patch.espBD KvatchRebuilt-CheydinhalFalls patch.espBE DungeonsOfIvellon-CheydinhalFalls patch.espBF Villages-CheydinhalFalls patch.espC0 xulAspenWood.esp [Version 1.0.2]++ Lakewood+AspenWood Patch.esp [Version 3.0]C1 xulSkingradOutskirts.esp [Version 1.0.2]C2 xulSnowdale.esp [Version 1.0.5]++ Feldscar+Snowdale Patch.esp [Version 1.0.2]++ OOO-Snowdale patch.esp [Version 1.1]C3 xulCliffsOfAnvil.esp [Version 1.12]C4 OOO-CliffsOfAnvil patch.esp [Version 1.2]C5 MMMDungeons-CliffsOfAnvil patch.esp [Version 1.0]C6 xulSilverfishRiverValley.esp [Version 1.0.3]C7 xulJerallGlacier.esp [Version 1.0.1]C8 OOO-JerallGlacier patch.esp [Version 1.0]C9 AyleidRuinsixpanded-JerallGlacier patch.esp [Version 1.0]CA xulTheEasternPeaks.esp [Version 1.0]++ NRB4+UL-II Patch.esp [Version 5.0.2]CB EtInArkay-UniqueLandscapes Merged patch.espCC KragenirsDeathQuest-UniqueLandscapes Merged patch.esp [Version 2.0]CD ImpeREAL Empire - Unique Forts.esp** ImpeREAL Empire - Unique Forts - Slofs Horses - By Xtudo.espCE ImpeREAL Empire - Unique Forts - OOO FCOM patch by Xtudo.esp++ ImpeREALForts+LostSpires Patch.esp [Version 1.0.1]++ ImpeREAL Forts + Lost Spires + Silverfish River Patch.esp [Version 1.0]CF West Roads.espD0 bartholm.espD1 bartholm - EE patch.esp [Version 4.2]D2 Frostcrag Village.esp [Version 1.0.7]D3 Sutch Village.esp [Version 1.0.2]++ LostCoast + SutchVillage Patch.esp [Version 1.0]D4 BarrowFields-Blood&Mud-Patch.esp [Version 1.1]++ FCOM_UnofficialFranArmorAddon.esp [Version 0.9.9]D5 Harvest [Flora].esp [Version 3.0.0]++ Harvest [Flora] - Shivering Isles.esp [Version 3.0.0]++ Harvest [Flora] - DLCVileLair.esp [Version 3.0.0]++ Harvest [Flora] - DLCFrostcrag.esp [Version 3.0.0]D6 DS Less Predictable Respawn.esp [Version 1.1]D7 Haldar's Mods Pack.esp [Version 7.02]++ GotNoClass.espD8 Soulgem Magic.esp [Version 2.0]++ Enhanced Economy - House prices.esp [Version 5.4.3]D9 Quest Award Leveller.esp++ Quest Award Leveller - Battlehorn Castle.esp++ Quest Award Leveller - Vile Lair.esp++ Quest Award Leveller - Mehrunes Razor.esp++ Quest Award Leveller - Knights of the Nine.espDA SM Encumbrance and Fatigue.esp [Version 2.6]DB SupremeMagicka.esp [Version 0.90b]DC SM_ShiveringIsles.esp [Version 0.90]++ SM_DLCSpellTome.esp [Version 0.90]++ SM_OOO.esp [Version 0.90]++ SM_MMM.esp [Version 0.90]++ SM_COBL.esp [Version 0.90]DD SM_EnchantStaff.esp [Version 0.90]++ SM_NoSpellLights.esp [Version 0.90]++ SM_Scrolls.esp [Version 0.90]DE MidasSpells.espDF StealthyAbsorbsAndDrains.espE0 SM Bounty.esp [Version 1.22c]E1 kuerteeCrimeHasWitnesses.espE2 WR Villages Addon.espE3 Enhanced Grabbing.esp [Version 0.5]E4 Creature Damage Fix.esp [Version 2.6]E5 I just hit you.espE6 BetterBlocking.esp [Version 3]E7 Duke Patricks - Near Miss Magic And Arrows Alert The Target.esp [Version 7.1]E8 Duke Patricks - Actors Can Miss Now.espE9 Duke Patricks - Fresh Kills Now Alert The NPCs.esp [Version 4]EA Phitt's Phighting Phixes.espEB BFG's Enhanced Armory.espEC Bundlement.esp [Version ision]ED nGCD.espEE nGCD Oghma Infinium.espEF JCN_AV Uncap.esp [Version 1.01]F0 SDR_Core.esp [Version 4.5.0]F1 SDR_Perks And Patches (Oblivion).esp [Version 4.5.0]** Cava Obscura - Cyrodiil.esp** Cava Obscura - SI.esp** Cava Obscura - Filter Patch For Mods.esp++ Item interchange - Extraction.esp [Version 0.78]++ Item interchange - Placement for FCOM.esp [Version 0.78]++ Item interchange - Placement for Frostcrag.esp [Version 0.78]++ Item interchange - Option, Ingredients in Bulk.esp [Version 0.78]F2 1em_Vilja.esp [Version 4.04]F3 CompanionMaster.espF4 bgBalancingEVCore.esp [Version 10.52EV-D]++ DiverseDremoraRBPCosmetics.esp [Version 0.95]F5 ZUAmberMadnessOverhaul.esp++ ZUSIO-MMM SI-patch.esp++ ZUSIO-SM Plugin Refurbish SI-patch.espF6 bgMagicEV.esp [Version 1.7EV]++ bgMagicSpellTomes_for_WryeBash.esp [Version 1.68EV]++ bgMagicItemSigil.esp [Version 1.68EV]F7 bgMagicBonus.esp [Version 1.7EV]++ bgMagicEVAddEnVar.esp [Version 1.68EV]F8 bgMagicEVPaperChase.esp [Version 1.68EV]F9 bgMagicAlchemy.esp [Version 1.57]++ VC - LAME VASE twinkle tweak.esp** bgBalancingEVOptionalNPCDiversity, TNR Merge.esp [Version 10.0EV-D]++ bgBalancingEVOptionalFCOMAdditions.esp [Version 10.]** bgBalancingOptionalNPCDiversityKvatchRebuilt, for Wrye Bash.esp [Version 9.0EV-D]FA bgBalancingEVLAMEAddition.esp [Version 10.51EV-D]++ bgBalancingEVLAMEGlue.esp [Version 10.0EV-D1.62EV]** bgBalancingEVOptionalNPCDiversityLAME.esp [Version 10.5EV-D]FB bgIntegrationEV.esp [Version 1.0b]++ Silverfish&bgIntegrationPatch.esp** [GFX]_Initial_Glow-all.esp** bgMagicEVShader.esp [Version 1.7EV]** FCOM_Archery.espFC Companion Compatibility.esp++ NRB4 Standard Road Record.esp++ CoreRandmonClothing4Npcs.esp++ OOO Harvest Containers Filter patch for mods.esp [Version 1.03]** All Natural - Indoor Weather Filter For Mods.esp [Version 1.34]FD Bashed Patch, 0.esp




( of course I'm not using MMM more wilderness wildlife alongside WAC, which would be crazy. I'm using FCOM stronger spawns for less spawns, and FCOM more random items and spawns to blend in better with WAC's unleveled approach. SDR set to only use its formula for me and my followers. I've avoided TT, crowded roads, diverse waterlife and other CPU taxing mods, etc. )