When ever entering Vault-81, I get a CTD. It occurs while taking the elevator down into the vault 100% of the time. I removed all my mods except for SS2 and SS2 Extended (and required frameworks), but I still get the crash. I even attempted to use "tcl" to go the through the secret vault and enter that way but it still crashes. I'll post both load order of all mods and just my SS2 mods.
All Mods:
fallout4.esm
DLCrobot.esm
DLCworkshop01.esm
DLCCoast.esm
DLCworkshop02.esm
DLCworkshop03.esm
DlCNukaWorld.esm
Unofficial Fallout 4 Patch.esp
ArmorKeywords.esm
DamnApocalypse_CORE.esm
PANPC.esm
WorkshopFramework.esm
HUDFramework.esm
SS2.esm
SS2Extended.esp
NoAffinityCooldown.esp
NoNegativeAffinity.esp
Better Inventory Sorting - Armors.esp
Reverb and Ambiance Overhaul.esp
Vivid Weathers- FO4.esp
Vivid Weathers- FO4- Quest.esp
W.A.T.Minutemen.esp
Vivid Waters.esp
Vivid Weathers-F04-Far Harbor.esp
Vivid Weathers-Natural Bright.esp
Vivid Weathers-Nuka World.esp
Another Sanctuary Bridge.esp
MK18.esp
M1Garand.esp
P90.esp
M1Garand-AWKCR.esp
P90NPC.esp
Better Inventory Sorting-Misc.esp
Companion Infinite Ammo and Unbreakable Power Armour.esp
dD-Enhanced Blood Basic.esp
dD-Screen Blood Duration Medium.esp
EasyHacking.esp
EveryonesBestFriend.esp
EasyLockpicking.esp
HoloTime_2.esp
VisibleCompanionAffinity.esp
Vivid Fallout-All in Ones -4K.esp
BetterWeapons.esp
DamnApocalypse_CombatTweaks.esp
CraftableAmmo.esp
CraftableAmmo_plus.esp
Armorsmith Extended.esp
Pop-BoyFlashlight.esp
SS2 Only:
fallout4.esm
DLCrobot.esm
DLCworkshop01.esm
DLCCoast.esm
DLCworkshop02.esm
DLCworkshop03.esm
DlCNukaWorld.esm
WorkshopFramework.esm
HUDFramework.esm
SS2.esm
SS2Extended.esp
Again both sets of mods cause CTD upon trying to enter Vault 81
All Mods:
fallout4.esm
DLCrobot.esm
DLCworkshop01.esm
DLCCoast.esm
DLCworkshop02.esm
DLCworkshop03.esm
DlCNukaWorld.esm
Unofficial Fallout 4 Patch.esp
ArmorKeywords.esm
DamnApocalypse_CORE.esm
PANPC.esm
WorkshopFramework.esm
HUDFramework.esm
SS2.esm
SS2Extended.esp
NoAffinityCooldown.esp
NoNegativeAffinity.esp
Better Inventory Sorting - Armors.esp
Reverb and Ambiance Overhaul.esp
Vivid Weathers- FO4.esp
Vivid Weathers- FO4- Quest.esp
W.A.T.Minutemen.esp
Vivid Waters.esp
Vivid Weathers-F04-Far Harbor.esp
Vivid Weathers-Natural Bright.esp
Vivid Weathers-Nuka World.esp
Another Sanctuary Bridge.esp
MK18.esp
M1Garand.esp
P90.esp
M1Garand-AWKCR.esp
P90NPC.esp
Better Inventory Sorting-Misc.esp
Companion Infinite Ammo and Unbreakable Power Armour.esp
dD-Enhanced Blood Basic.esp
dD-Screen Blood Duration Medium.esp
EasyHacking.esp
EveryonesBestFriend.esp
EasyLockpicking.esp
HoloTime_2.esp
VisibleCompanionAffinity.esp
Vivid Fallout-All in Ones -4K.esp
BetterWeapons.esp
DamnApocalypse_CombatTweaks.esp
CraftableAmmo.esp
CraftableAmmo_plus.esp
Armorsmith Extended.esp
Pop-BoyFlashlight.esp
SS2 Only:
fallout4.esm
DLCrobot.esm
DLCworkshop01.esm
DLCCoast.esm
DLCworkshop02.esm
DLCworkshop03.esm
DlCNukaWorld.esm
WorkshopFramework.esm
HUDFramework.esm
SS2.esm
SS2Extended.esp
Again both sets of mods cause CTD upon trying to enter Vault 81