It's in a tiny cell, that isn't +30 thousand or -30 thousand in any way. And it's very tiny, like just a two story house. It's only approximately about 6 beds long in both floors for lack of better term, which is very small for an interior cell.

Yet these shelves which I have perfectly fine working scripts on that make them float up and down, or one of them at least, keeps appearing in game a few units away from where it should be, blocking an important path down the stairs. Also two other similar shelfs which are scripted to only float up and down, are again doing something similar. The scripts themselves function fine... It appears to be some other issue. I also even loaded to a save game that existed before the mod with these was loaded in game, and that didn't resolve it either.

Any ideas on how this happened, and how to fix it? I'd be highly thankful for any help as always.

Not sure how your script is applying the floating TranslateTo() ? That's what I've been using moving statics, I use an Xmarker linked from the scripted object in question and get the co-ordinates from the Xmarker and go from there. I would normally have an Onload() event to reposition the object in case it tries to wander.