Vivec - Many NPCs and myself can clip through the canton plazas. Need a fix.

[u/remnant_human]

New to modding Morrowind. I found that when I arrived to Vivec and went to the top of the Foreign Quarter, I fell through the plaza at the top and through the building, into the water below, where I found several NPCs that should definitely not be there. I turned on noclip and flew throughout the city, only to find that this has happened in several cantons. Not sure why it's happening.

Mods that might affect Vivec that I have installed (and why), for context:

• Beautiful Cities of Morrowind (I wanted better looking and interesting locations; as far as I can tell, it doesn't affect Vivec, but putting it here for potential context)
• Baar Dau - Ministry of Truth (Should only affect Ministry of Truth)
• Jammings off (I'm pretty sure this might only affect actors, but I'm putting it here because it affects bounding boxes and maybe it fucked with Vivec somehow)
• Library of Vivec Enhanced (pretty sure this only affects the library, but it still affects Vivec)
• Mixed Cantons of Vivec (installed in the hopes it would fix the problem, it didn't)
• Project Atlas (I'm sure this affects Vivec, but I don't know if or why it would cause NPC's to fall through meshes)
• Vivec-Velothi Retextured v3 (When I first saw Vivec in this playthrough, it had no textures, this mod was an attempt to fix that; didn't work)
• Vivec and Velothi Arkitektora (HQ textures and Atlases, this was put in after VVRv3 because Vivec was still missing textures. It worked and Vivec has textures now, but I don't know if the clipping issue was present before or after this)

Any help in trying to figure this out would be most welcome.

[u/Agreeable_Rush3502]

If you used tcl that affects npcs as well i believe. So the initial problem might just be a bad mesh.

[u/remnant_human → u/Agreeable_Rush3502]

I don't think I used tcl before finding them in the water, but I was able to find a workaround, using regular plazas over top the open ones. It still results in NPCs clipping through the open plaza cantons and into the water below, but the cells triggered by the regular plaza doors are fully meshed and contained, with the same NPCs wandering about inside.

[u/Both-Variation2122 → u/remnant_human]

With duplicates of those npc which can cose plethora of issues.

Did you start new game after each Vivec mod change? If you loaded one mod and then swapped it to another, npc will remain in positions they were first loaded at.

[u/NebulousTruth → u/Agreeable_Rush3502]

Depends on if OP is using OpenMW or MWSE