But yeah, anyone know what's happening? I've never had this problem before despite my numerous installs of Oblivion. I've tried deleting the meshes and textures of the appropriate tilesets (specifically the cave tileset) so Oblivion uses the ones from the BSA, but it didn't help.
Here are my mods. I'm also using OBGE, OSR, Pluggy, and Fast Exit.
Spoiler
00 Oblivion.esm
01 You Are Here.esm
02 All Natural Base.esm [Version 1.3.1]
03 Francesco's Leveled Creatures-Items Mod.esm [Version 4.5bSI]
04 Francesco's Optional New Items Add-On.esm [Version 4.5bSI]
05 Cobl Main.esm [Version 1.72]
06 Oscuro's_Oblivion_Overhaul.esm [Version 1.34]
07 Mart's Monster Mod.esm [Version 3.7b3p3]
08 FCOM_Convergence.esm [Version 0.9.9MB3]
09 Armamentarium.esm [Version 1.35]
0A Artifacts.esm [Version 1.1]
0B Better Cities Resources.esm [Version 4.9.5]
0C BathingMod_Base.esm
0D CM Partners.esm
0E HorseCombatMaster.esm
0F ScreenEffects.esm
10 Unofficial Oblivion Patch.esp [Version 3.2.0]
11 DLCShiveringIsles.esp
12 Unofficial Shivering Isles Patch.esp [Version 1.4.0]
13 Better Cities .esp [Version 4.7.0]
14 Francesco's Optional Chance of Stronger Bosses.esp
15 Francesco's Optional Chance of Stronger Enemies.esp
16 Francesco's Optional Chance of More Enemies.esp
17 Francesco's Optional Leveled Guards.esp
++ FCOM_Francescos.esp [Version 0.9.9]
++ FCOM_FrancescosItemsAddOn.esp [Version 0.9.9]
18 FCOM_FrancescosNamedBosses.esp [Version 0.9.9]
19 All Natural.esp [Version 1.3.1]
1A All Natural - SI.esp [Version 1.3]
++ All Natural - MMM Patch.esp [Version 1.3]
1B Immersive Interiors.esp [Version 0.8.1]
1C WindowLightingSystem.esp
1D AmbientDungeons.esp [Version 1.3]
1E Book Jackets Oblivion.esp
1F ClocksOfCyrodiil.esp
++ Item interchange - Extraction.esp [Version 0.76]
20 RAEVWD Cities.esp [Version 1.9]
21 RAEVWD New Sheoth.esp [Version 1.7]
22 Enhanced Economy.esp [Version 5.3]
23 Display Stats.esp [Version 2.0.1]
24 DropLitTorchOBSE.esp [Version 2.4]
25 Oblivion Graphics Extender Support.esp [Version 0.42]
26 ScreenControls.esp
27 Streamline 3.1.esp
28 Map Marker Overhaul.esp [Version 3.9]
++ MaleBodyReplacerV4.esp
29 BlueAndWhitePorcelain - Full.esp
2A BlueAndWhitePorcelain - Shop Inventory Only.esp
2B Drake Knight Armor and Weapons v1.0.esp
2C Jade Dishes.esp
2D KDDwemerSpectacles.esp
2E pale_rider's Hats.esp
++ RTFemaleReplacerV12.esp
2F Tyrael Armor.esp
30 AncientTowers.esp
++ MMM_Runeskull_Rebalance_BETA2.esp [Version Beta]
31 Cobl Glue.esp [Version 1.72]
32 Cobl Si.esp [Version 1.63]
33 Bob's Armory Oblivion.esp
34 FCOM_BobsArmory.esp [Version 0.9.9]
35 Loth's Blunt Weapons for Npcs.esp
++ FCOM_LothsBluntWeapons.esp [Version 0.9.9]
36 Oblivion WarCry EV.esp [Version 1.09]
37 FCOM_WarCry.esp [Version 0.9.9MB5]
38 Oscuro's_Oblivion_Overhaul.esp [Version 1.34]
** OMOBS_SI.esp [Version 2.0]
39 OMOBS Optional Combat Settings.esp [Version 1.0]
++ ArmamentariumLLVendors.esp [Version 1.35]
++ FCOM_Cobl.esp [Version 0.9.9]
3A FCOM_Convergence.esp [Version 0.9.9Mb3]
3B FCOM_RealSwords.esp [Version 0.9.9]
3C Mart's Monster Mod - Diverse WaterLife.esp [Version 3.7b3p3f]
++ ArmamentariumLL4OOO.esp [Version 2.01]
++ ArmamentariumLLMagicOOO.esp [Version 1.35]
++ MMM-Cobl.esp [Version 1.73]
3D Vaernlor Manor.esp
3E Artifacts.esp [Version 1.1]
++ Artifacts - ArmaCompleteAddon.esp [Version 1.0]
3F BlackMarshHall.esp
40 Castle.Bedwyr 1.0.0.esp
41 CastleEltz.esp
42 CastleWestWeald.esp
43 GreenGables.esp
44 JSRandomTasks.esp [Version 1.1a]
45 GlenvarCastle.esp
46 LordKain_Adash_World.esp
47 MountainShackR13.esp
48 Theryon.esp
49 The Ayleid Steps.esp [Version 3.4]
4A VaultsofCyrodiilBC.esp
4B za_bankmod.esp
4C Knights.esp
4D Castle_Knightstone.esp
4E TOTF.esp
4F RTT.esp
50 The Lost Spires.esp
51 HoarfrostCastle.esp
++ FCOM_Knights.esp [Version 0.9.9Mb3]
++ FCOM_Ruin.esp [Version 0.9.9]
** FCOM_SlofsHorses.esp
52 HeartOftheDead.esp [Version 6.5]
53 xuldarkforest.esp [Version 1.0.5]
54 xulStendarrValley.esp [Version 1.2.2]
55 xulTheHeath.esp
56 XulEntiusGorge.esp
57 xulFallenleafEverglade.esp [Version 1.3.1]
58 xulColovianHighlands_EV.esp [Version 1.2.1]
59 xulChorrolHinterland.esp [Version 1.2.2]
5A xulBeachesOfCyrodiilLostCoast.esp [Version 1.6.4]
5B xulBravilBarrowfields.esp [Version 1.3.3]
5C xulLushWoodlands.esp [Version 1.3.1]
5D xulAncientYews.esp [Version 1.4.3]
5E xulAncientRedwoods.esp [Version 1.6]
5F xulCloudtopMountains.esp [Version 1.0.3]
60 xulArriusCreek.esp [Version 1.1.3]
61 xulPatch_AY_AC.esp [Version 1.1]
62 xulRollingHills_EV.esp [Version 1.3.3]
63 xulPantherRiver.esp
64 xulRiverEthe.esp [Version 1.0.2]
65 xulBrenaRiverRavine.esp [Version 1.1]
66 xulImperialIsle.esp [Version 1.6.7]
67 xulBlackwoodForest.esp [Version 1.1.0]
68 xulCheydinhalFalls.esp [Version 1.0.1]
69 xulAspenWood.esp [Version 1.0.2]
6A xulSkingradOutskirts.esp [Version 1.0.1]
6B xulSnowdale.esp [Version 1.0.2]
6C xulCliffsOfAnvil.esp [Version 1.12]
6D xulSilverfishRiverValley.esp [Version 1.0.1]
6E ImpeREAL Empire - Unique Forts.esp
6F ImpeREAL Empire - Unique Forts - OOO FCOM patch by Xtudo.esp
70 Castle_Wolfspike.esp
71 Millstone_Farm_COBL.esp
72 MillstoneCOBL_UL_Patch.esp
73 ImpeREAL Empire Unique Cities - Sutch.esp
74 P1DkeyChain.esp [Version 5.00]
75 Respawning Varla & Welkynd Stones.esp
76 Toggleable Quantity Prompt.esp [Version 3.2.0]
77 BathingMod_Soap.esp
78 BathingMod_Placeable_Bathtubs.esp
79 Telekinetic Mastery.esp [Version 2]
7A RefScope.esp [Version 2.1.2]
7B MidasSpells.esp
7C FearsomeMagicka.esp
7D RenGuardOverhaul.esp
7E Deadly Reflex 6 - Timed Block and 250% damage.esp
7F Mounted_Spellcasting_Deadly_Reflex_Compatible.esp
80 nGCD.esp
++ nGCD Skeleton Key.esp
81 SP1stPLegs.esp
++ Item interchange - Placement for FCOM.esp [Version 0.76]
++ Item interchange - Option, Ingredients in Bulk.esp [Version 0.76]
82 bgBalancingEVCore.esp [Version 10.52EV-D]
83 bgMagicEV.esp [Version 1.7EV]
++ bgMagicItemSigil.esp [Version 1.68EV]
++ bgMagicEVStartspells.esp [Version 1.68EV]
84 bgMagicBonus.esp [Version 1.7EV]
++ bgMagicEVAddEnVar.esp [Version 1.68EV]
85 bgMagicEVPaperChase.esp [Version 1.68EV]
86 bgMagicAlchemy.esp [Version 1.57]
++ bgBalancingEVOptionalMoreEyes.esp [Version 10]
++ bgBalancingEVOptionalFCOMAdditions.esp [Version 10.]
87 bgBalancingEVLAMEAddition.esp [Version 10.51EV-D]
++ bgBalancingEVLAMEGlue.esp [Version 10.0EV-D1.62EV]
** bgBalancingEVOptionalNPCDiversityLAME.esp [Version 10.5EV-D]
88 Better Cities Full.esp [Version 4.9.5]
89 Better Cities - VWD of the IC.esp [Version 4.7.0]
8A Better Imperial City.esp [Version 4.9.5]
8B Better Cities Full FPS Patch.esp [Version 4.9.5]
8C Better Cities - All Natural.esp [Version 4.9.5]
8D Better Cities - Unique Landscape Barrowfields.esp [Version 4.9.5]
8E Better Cities - Ruined Tail's Tale.esp [Version 4.8.0]
8F Better Cities - Unique Landscape Chorrol Hinterland.esp [Version 4.8.4]
90 Better Cities - Tears of the Fiend.esp [Version 4.7.0]
91 Better Cities - Unique Landscape Cheydinhal Falls.esp [Version 4.8.1]
92 Better Cities - Unique Landscape Skingrad Outskirts.esp [Version 4.9.1]
93 Better Imperial City FPS Patch.esp [Version 4.9.1]
94 Better Cities - The Lost Spires.esp [Version 4.9.5]
95 Better Cities - COBL.esp [Version 2.1]
96 Better Cities - Unique Landscape Imperial Isle.esp [Version 4.8.1]
97 Better Cities - No LEYAWIIN Flooding.esp [Version 4.9.0]
++ -No-_persistant_enchantment_glow_fix-1843.esp
** bgMagicEVShader.esp [Version 1.7EV]
98 DeadlyReflex 6 - Combat Moves.esp
++ Cobl Filter Late MERGE ONLY.esp [Version 1.53]
** All Natural - Indoor Weather Filter For Mods.esp [Version 1.3]
99 Bashed Patch, 0.esp
9A Mart's Monster Mod - Diverse Runeskulls Loot beta Place After Bashed Patch.esp
9B DragonCove.esp
9C ZozCrystalOrder.esp
9D Decent Rewards v2.esp
01 You Are Here.esm
02 All Natural Base.esm [Version 1.3.1]
03 Francesco's Leveled Creatures-Items Mod.esm [Version 4.5bSI]
04 Francesco's Optional New Items Add-On.esm [Version 4.5bSI]
05 Cobl Main.esm [Version 1.72]
06 Oscuro's_Oblivion_Overhaul.esm [Version 1.34]
07 Mart's Monster Mod.esm [Version 3.7b3p3]
08 FCOM_Convergence.esm [Version 0.9.9MB3]
09 Armamentarium.esm [Version 1.35]
0A Artifacts.esm [Version 1.1]
0B Better Cities Resources.esm [Version 4.9.5]
0C BathingMod_Base.esm
0D CM Partners.esm
0E HorseCombatMaster.esm
0F ScreenEffects.esm
10 Unofficial Oblivion Patch.esp [Version 3.2.0]
11 DLCShiveringIsles.esp
12 Unofficial Shivering Isles Patch.esp [Version 1.4.0]
13 Better Cities .esp [Version 4.7.0]
14 Francesco's Optional Chance of Stronger Bosses.esp
15 Francesco's Optional Chance of Stronger Enemies.esp
16 Francesco's Optional Chance of More Enemies.esp
17 Francesco's Optional Leveled Guards.esp
++ FCOM_Francescos.esp [Version 0.9.9]
++ FCOM_FrancescosItemsAddOn.esp [Version 0.9.9]
18 FCOM_FrancescosNamedBosses.esp [Version 0.9.9]
19 All Natural.esp [Version 1.3.1]
1A All Natural - SI.esp [Version 1.3]
++ All Natural - MMM Patch.esp [Version 1.3]
1B Immersive Interiors.esp [Version 0.8.1]
1C WindowLightingSystem.esp
1D AmbientDungeons.esp [Version 1.3]
1E Book Jackets Oblivion.esp
1F ClocksOfCyrodiil.esp
++ Item interchange - Extraction.esp [Version 0.76]
20 RAEVWD Cities.esp [Version 1.9]
21 RAEVWD New Sheoth.esp [Version 1.7]
22 Enhanced Economy.esp [Version 5.3]
23 Display Stats.esp [Version 2.0.1]
24 DropLitTorchOBSE.esp [Version 2.4]
25 Oblivion Graphics Extender Support.esp [Version 0.42]
26 ScreenControls.esp
27 Streamline 3.1.esp
28 Map Marker Overhaul.esp [Version 3.9]
++ MaleBodyReplacerV4.esp
29 BlueAndWhitePorcelain - Full.esp
2A BlueAndWhitePorcelain - Shop Inventory Only.esp
2B Drake Knight Armor and Weapons v1.0.esp
2C Jade Dishes.esp
2D KDDwemerSpectacles.esp
2E pale_rider's Hats.esp
++ RTFemaleReplacerV12.esp
2F Tyrael Armor.esp
30 AncientTowers.esp
++ MMM_Runeskull_Rebalance_BETA2.esp [Version Beta]
31 Cobl Glue.esp [Version 1.72]
32 Cobl Si.esp [Version 1.63]
33 Bob's Armory Oblivion.esp
34 FCOM_BobsArmory.esp [Version 0.9.9]
35 Loth's Blunt Weapons for Npcs.esp
++ FCOM_LothsBluntWeapons.esp [Version 0.9.9]
36 Oblivion WarCry EV.esp [Version 1.09]
37 FCOM_WarCry.esp [Version 0.9.9MB5]
38 Oscuro's_Oblivion_Overhaul.esp [Version 1.34]
** OMOBS_SI.esp [Version 2.0]
39 OMOBS Optional Combat Settings.esp [Version 1.0]
++ ArmamentariumLLVendors.esp [Version 1.35]
++ FCOM_Cobl.esp [Version 0.9.9]
3A FCOM_Convergence.esp [Version 0.9.9Mb3]
3B FCOM_RealSwords.esp [Version 0.9.9]
3C Mart's Monster Mod - Diverse WaterLife.esp [Version 3.7b3p3f]
++ ArmamentariumLL4OOO.esp [Version 2.01]
++ ArmamentariumLLMagicOOO.esp [Version 1.35]
++ MMM-Cobl.esp [Version 1.73]
3D Vaernlor Manor.esp
3E Artifacts.esp [Version 1.1]
++ Artifacts - ArmaCompleteAddon.esp [Version 1.0]
3F BlackMarshHall.esp
40 Castle.Bedwyr 1.0.0.esp
41 CastleEltz.esp
42 CastleWestWeald.esp
43 GreenGables.esp
44 JSRandomTasks.esp [Version 1.1a]
45 GlenvarCastle.esp
46 LordKain_Adash_World.esp
47 MountainShackR13.esp
48 Theryon.esp
49 The Ayleid Steps.esp [Version 3.4]
4A VaultsofCyrodiilBC.esp
4B za_bankmod.esp
4C Knights.esp
4D Castle_Knightstone.esp
4E TOTF.esp
4F RTT.esp
50 The Lost Spires.esp
51 HoarfrostCastle.esp
++ FCOM_Knights.esp [Version 0.9.9Mb3]
++ FCOM_Ruin.esp [Version 0.9.9]
** FCOM_SlofsHorses.esp
52 HeartOftheDead.esp [Version 6.5]
53 xuldarkforest.esp [Version 1.0.5]
54 xulStendarrValley.esp [Version 1.2.2]
55 xulTheHeath.esp
56 XulEntiusGorge.esp
57 xulFallenleafEverglade.esp [Version 1.3.1]
58 xulColovianHighlands_EV.esp [Version 1.2.1]
59 xulChorrolHinterland.esp [Version 1.2.2]
5A xulBeachesOfCyrodiilLostCoast.esp [Version 1.6.4]
5B xulBravilBarrowfields.esp [Version 1.3.3]
5C xulLushWoodlands.esp [Version 1.3.1]
5D xulAncientYews.esp [Version 1.4.3]
5E xulAncientRedwoods.esp [Version 1.6]
5F xulCloudtopMountains.esp [Version 1.0.3]
60 xulArriusCreek.esp [Version 1.1.3]
61 xulPatch_AY_AC.esp [Version 1.1]
62 xulRollingHills_EV.esp [Version 1.3.3]
63 xulPantherRiver.esp
64 xulRiverEthe.esp [Version 1.0.2]
65 xulBrenaRiverRavine.esp [Version 1.1]
66 xulImperialIsle.esp [Version 1.6.7]
67 xulBlackwoodForest.esp [Version 1.1.0]
68 xulCheydinhalFalls.esp [Version 1.0.1]
69 xulAspenWood.esp [Version 1.0.2]
6A xulSkingradOutskirts.esp [Version 1.0.1]
6B xulSnowdale.esp [Version 1.0.2]
6C xulCliffsOfAnvil.esp [Version 1.12]
6D xulSilverfishRiverValley.esp [Version 1.0.1]
6E ImpeREAL Empire - Unique Forts.esp
6F ImpeREAL Empire - Unique Forts - OOO FCOM patch by Xtudo.esp
70 Castle_Wolfspike.esp
71 Millstone_Farm_COBL.esp
72 MillstoneCOBL_UL_Patch.esp
73 ImpeREAL Empire Unique Cities - Sutch.esp
74 P1DkeyChain.esp [Version 5.00]
75 Respawning Varla & Welkynd Stones.esp
76 Toggleable Quantity Prompt.esp [Version 3.2.0]
77 BathingMod_Soap.esp
78 BathingMod_Placeable_Bathtubs.esp
79 Telekinetic Mastery.esp [Version 2]
7A RefScope.esp [Version 2.1.2]
7B MidasSpells.esp
7C FearsomeMagicka.esp
7D RenGuardOverhaul.esp
7E Deadly Reflex 6 - Timed Block and 250% damage.esp
7F Mounted_Spellcasting_Deadly_Reflex_Compatible.esp
80 nGCD.esp
++ nGCD Skeleton Key.esp
81 SP1stPLegs.esp
++ Item interchange - Placement for FCOM.esp [Version 0.76]
++ Item interchange - Option, Ingredients in Bulk.esp [Version 0.76]
82 bgBalancingEVCore.esp [Version 10.52EV-D]
83 bgMagicEV.esp [Version 1.7EV]
++ bgMagicItemSigil.esp [Version 1.68EV]
++ bgMagicEVStartspells.esp [Version 1.68EV]
84 bgMagicBonus.esp [Version 1.7EV]
++ bgMagicEVAddEnVar.esp [Version 1.68EV]
85 bgMagicEVPaperChase.esp [Version 1.68EV]
86 bgMagicAlchemy.esp [Version 1.57]
++ bgBalancingEVOptionalMoreEyes.esp [Version 10]
++ bgBalancingEVOptionalFCOMAdditions.esp [Version 10.]
87 bgBalancingEVLAMEAddition.esp [Version 10.51EV-D]
++ bgBalancingEVLAMEGlue.esp [Version 10.0EV-D1.62EV]
** bgBalancingEVOptionalNPCDiversityLAME.esp [Version 10.5EV-D]
88 Better Cities Full.esp [Version 4.9.5]
89 Better Cities - VWD of the IC.esp [Version 4.7.0]
8A Better Imperial City.esp [Version 4.9.5]
8B Better Cities Full FPS Patch.esp [Version 4.9.5]
8C Better Cities - All Natural.esp [Version 4.9.5]
8D Better Cities - Unique Landscape Barrowfields.esp [Version 4.9.5]
8E Better Cities - Ruined Tail's Tale.esp [Version 4.8.0]
8F Better Cities - Unique Landscape Chorrol Hinterland.esp [Version 4.8.4]
90 Better Cities - Tears of the Fiend.esp [Version 4.7.0]
91 Better Cities - Unique Landscape Cheydinhal Falls.esp [Version 4.8.1]
92 Better Cities - Unique Landscape Skingrad Outskirts.esp [Version 4.9.1]
93 Better Imperial City FPS Patch.esp [Version 4.9.1]
94 Better Cities - The Lost Spires.esp [Version 4.9.5]
95 Better Cities - COBL.esp [Version 2.1]
96 Better Cities - Unique Landscape Imperial Isle.esp [Version 4.8.1]
97 Better Cities - No LEYAWIIN Flooding.esp [Version 4.9.0]
++ -No-_persistant_enchantment_glow_fix-1843.esp
** bgMagicEVShader.esp [Version 1.7EV]
98 DeadlyReflex 6 - Combat Moves.esp
++ Cobl Filter Late MERGE ONLY.esp [Version 1.53]
** All Natural - Indoor Weather Filter For Mods.esp [Version 1.3]
99 Bashed Patch, 0.esp
9A Mart's Monster Mod - Diverse Runeskulls Loot beta Place After Bashed Patch.esp
9B DragonCove.esp
9C ZozCrystalOrder.esp
9D Decent Rewards v2.esp
Thanks!