"Back Door" of Mehrunes Razor dungeon not opening

[MidbossVyers]

Typically, when I get the Mehrunes Razor, the "back door" of the dungeon will open. However, it is not doing so now. What could possibly have caused this? My load order is as follows:

Oblivion.esm
DLCShiveringIsles.esp
DLCOrrery.esp
DLCVileLair.esp
DLCSpellTomes.esp
DLCHorseArmor.esp
DLCFrostcrag.esp
DLCMehrunesRazor.esp
DLCBattlehornCastle.esp
DLCThievesDen.esp
Unofficial Oblivion Patch.esp
Unofficial Shivering Isles Patch.esp
DLCHorseArmor - Unofficial Patch.esp
DLCOrrery - Unofficial Patch.esp
DLCThievesDen - Unofficial Patch.esp
DLCThievesDen - Unofficial Patch - SSSB.esp
DLCVileLair - Unofficial Patch.esp
DLCFrostcrag - Unofficial Patch.esp
DLCMehrunesRazor - Unofficial Patch.esp
DLCSpellTomes - Unofficial Patch.esp
DLCBattlehornCastle - Unofficial Patch.esp
Oblivion Citadel Door Fix.esp
Alluring Wine Bottles.esp
UOP Vampire Aging & Face Fix.esp
FastTravelDoubleFaceFix.esp
Notused_Leather.esp
ZealotF.esp
Emperor_F.esp
Dwavenremodel.esp
khajiittextfix.esp

[Imbalance]

Is that an animated door? How many hours?

[MidbossVyers]

Animated door, and I was hoping to fix the issue without doing anything weird. If I had to use tcl, I may as well just backtrack through the dungeon, which is a lot faster than going in. What do you mean hours?

[Imbalance]

When animation stops working (certain doors, flame flicker, visual spell effects act weird) past the 400 hour mark, it's a symptom of the a-bomb bug.

[MidbossVyers]

For this particular playthrough, it has only been 19 hours, but are you talking about in total?

[Imbalance]

Not likely, unless one of your mods advanced the cache problem. I don't recall anyone reporting it who hadn't also played a very long time on the same file.

https://en.uesp.net/wiki/Oblivion:Techn ... omb_bug.29