NPC appear/disappear randomly (in front of me)

[darkangel2041]

  I started to modify a NOLVUS Redux list to add adults mods and I am facing an annoying bug.

There two symptoms and maybe they have to same origin (or not) 😉

 - Some NPC randomly appear or disappear just in front of me. It happens at several place (outside, inside), but I do most of my test in the tavern of Riverwood. In a certain way, it is like if they enter or quit the zone, but it happens at any place (and not in front of a door to exit by example). Sometimes they appear a second and disappear immediately.

- (sometimes I have the feeling that all NPC in the tavern are stuck, or outside, but it is just a feeling)

 

- When entering a new zone most of the NPC have their name replaced by a structure of "Gender/Race", like "Nord female", "Redguard Male". After a while or after I speak with the NPC the correct name is displayed. This behaviour affects vanilla NPC and added NPC. It wasn't a bug. It was made by a the mod More Immersive Integration. It is the kind of things that could happen when you work on a mod list you didn'create from the scractch 😉

 

All adults mods are working fluently. So, I get back to my most ancient profile (with no added mods, but only having a couple of mods eslyified from a list available on the discord server of Nolvus - seem safe as they are tested by the community and none of them seems related to NPC or AI). I made several searchs on google but I didn't find a topic with the exact same problem. Some topics spoke about a bug with faster HDT-SMP, so I tried with a newer version, but the bugs are still there. I also try to a bash patch, with the same results. I tried a Synthesis patch in link with AI, no change. I also improved iMaxOpsPerFrame = 2000 in papyrus NG tweaks in case, but no change.

 

 

At this stade I have no more idea where to go, if someone has a hint, I would realy appreciate. It seems the problem is from the base Nolvus but because I don’t have an untouched version I cannot be 100% sure. I may a have break something at a moment (Nolvus is like a masterpiece, so I think the problem is more on my side ;-)) .

 

 

Edited February 3, 2024 by darkangel2041

[darkangel2041]

I think I finaly solved this. The followind mod seems the culpit. Removing it solved the problem. I post here for the posterity.

Mod : NPC AI Process Position Fix - NG (https://www.nexusmods.com/skyrimspecialedition/mods/69326?tab=description)