As it says on the tin this mod aims to stop your mannequins from moving. Permanently. This mod uses 0 scripts to keep your mannequins in place. A relatively simple fix for a suprisingly minor yet infuriating bug. i haven't tested this mod extensively but with my load order of about 80 plus mods (not the heaviest but also not a light mod load order) in a modded playerhome that added about 50 mannequins to a single cell causing them to move literally every time i loaded the cell but for the past 20 hours of gameplay (since the introduction of this mod) they have sat completely still. Not a peep.

Technical stuff: 
. All i did to create this mod was simply disable the ability for mannequins to move in the "manakin race" file. And instead ticked the "immobile" box. Yes it appears to have really been THAT simple. 

Compatibility: In theory compatible with literally anything so long as it doesnt make any changes to the "Manakin race" file in which case the mod will simply cease to work. Though while i cant confirm this im almost certain that literally nothing will cause this mod to break your game in anyway, in the event of an error the most it will do is potentially change your mannequins in some way i.e dark face or simply the mod will cease to function in which case removing the mod should stop any problems. 

All feedback is absolutely appreciated, even if its to tell me my mod is a pile of crap that should be deleted 300 times over and burnt in the fires of mount doom. If any of your mannequins move for any reason even if you suspect its because of an abhorrent amount of mods i want to know about it so we can find out if this definitively fixes the issue or if its merely a step in the right direction. Furthermore if you believe this mod is working for you please endorse my mod. If this truly has fixed the issue beyond navmesh island and travel package modifications everyone should be using it so we can finally quell this decade long bug that was so carelessly untreated by bethesda (to be fair there are so few mannequins in the game i can see why it wasn't a priority) 

disclaimer. This is my very first mod because i couldnt find any (working) methods of keeping my mannequins in place on the mod page, furthermore this was originally made for special edition though there's no reason i should've cocked it up when porting it over considering all i had to do was untick 2 tick boxes and tick another but if the mod doesnt work let me know and ill see if i did mess it up somehow. 

SSE link: https://www.nexusmods.com/skyrimspecialedition/mods/53468

I would also like to mention, incase anyone on xbox or ps4 or those unwilling to use nexus stumbled upon this looking for a fix, i have ported my mod to bethesda.net on all platforms under the name "Mannequins Behave" 

If anyone knows more about modding than me, and can see a glaring issue with fixing it in this way PLEASE contact me immediately with an explanation so i can deal with this problem as needed (even if it just means removing the mod) 

As im not much of a modder, patches and updates wont likely be something ill do, though i suspect they wont be necessary. However if there's a particularly popular mannequin mod that this clashes with i may look into making some sort of compatibility patch. Similarly if there's a way i can make this mod work better relatively easily ill also do that (selfishly ofcourse, i like mannequins too :) ) 

Anyway this is a rather long description for a 23Kb mod so ill end it here. Thank you for your patience, and i hope this mod keeps those pesky mannequins in their place.