here is my current list of mods if that makes a difference.
Spoiler
Active Mod Files:00 Oblivion.esm01 Francesco's Leveled Creatures-Items Mod.esm [Version 4.5bSI]02 Francesco's Optional New Items Add-On.esm [Version 4.5bSI]03 Cobl Main.esm [Version 1.73]04 Oscuro's_Oblivion_Overhaul.esm [Version 1.34]05 Mart's Monster Mod.esm [Version 3.7b3p3]06 FCOM_Convergence.esm [Version 0.9.9MB3]07 Artifacts.esm [Version 1.1]08 Better Cities Resources.esm [Version 4.8.4]09 Unofficial Oblivion Patch.esp [Version 3.2.0]0A UOP Vampire Aging & Face Fix.esp [Version 1.0.0]0B DLCShiveringIsles.esp0C Unofficial Shivering Isles Patch.esp [Version 1.4.0]0D Francesco's Optional Chance of Stronger Bosses.esp0E Francesco's Optional Chance of Stronger Enemies.esp0F Francesco's Optional Chance of More Enemies.esp10 Francesco's Optional Leveled Guards.esp11 FCOM_FrancescosNamedBosses.esp [Version 0.9.9]12 DLCHorseArmor.esp13 DLCHorseArmor - Unofficial Patch.esp [Version 1.0.5]14 DLCOrrery.esp15 DLCOrrery - Unofficial Patch.esp [Version 1.0.3]16 DLCVileLair.esp17 DLCVileLair - Unofficial Patch.esp [Version 1.0.5]18 DLCMehrunesRazor.esp19 DLCMehrunesRazor - Unofficial Patch.esp [Version 1.0.4]1A DLCSpellTomes.esp1B DLCThievesDen.esp1C DLCThievesDen - Unofficial Patch.esp [Version 1.0.5]1D DLCThievesDen - Unofficial Patch - SSSB.esp [Version 1.0.4]1E Cobl Glue.esp [Version 1.73]1F Cobl Si.esp [Version 1.63]20 Bob's Armory Oblivion.esp21 FCOM_BobsArmory.esp [Version 0.9.9]22 Loth's Blunt Weapons for Npcs.esp23 Oblivion WarCry EV.esp [Version 1.09]24 FCOM_WarCry.esp [Version 0.9.9MB3]25 Oscuro's_Oblivion_Overhaul.esp [Version 1.34]26 OOO 1.32-Cobl.esp [Version 1.72]27 FCOM_Convergence.esp [Version 0.9.9Mb3]28 FCOM_RealSwords.esp [Version 0.9.9]29 OOO-WaterFish.esp [Version 1.34]2A Artifacts.esp [Version 1.1]2B DLCBattlehornCastle.esp2C DLCBattlehornCastle - Unofficial Patch.esp [Version 1.0.4]2D DLCFrostcrag.esp2E DLCFrostcrag - Unofficial Patch.esp [Version 1.0.4]2F Knights.esp30 Knights - Unofficial Patch.esp [Version 1.0.9]31 Bashed Patch, 0.esp32 Cernasite - DragonEyes.esp33 idkrrr_sarameyesNhairs4originalrace.esp34 idkrrr_sarams_race.esp35 VaultsofCyrodiilBC.esp36 Better Cities Full.esp [Version 4.8.4]37 Better Imperial City.esp [Version 4.8.4]38 Better Cities - COBL.esp [Version 2.1]39 Better Cities Full FPS Patch.esp [Version 4.8.4]3A Better Imperial City FPS Patch.esp [Version 4.8.1]3B Better Cities - VWD of the IC.esp [Version 4.7.0]3C Better Cities - No LEYAWIIN Flooding.esp [Version 4.7.0]3D Better Cities .esp
as well as the quarls texture pack and hgec bodies. (both of which ran fine with this character face prior to trying to play her with FCOM)