It was a script workaround I found here http://www.gamesas.com/topic/1384861-yet-another-huge-bug-interior-cell-as-a-static-limit/page__st__30__p__21004763#entry21004763 , but I dont think its the script causing the issue.
I thought "Derp, clean save" so I did that... a few times now. That door will NOT budge. Ive tried a clean save in the cell, outside the cell, in an interior cell across the map. I even tried making myself a clean "fix" esp where I slightly moved the doors in hoping it would overwrite whatever was in my save game, but that doesnt work either.
I can move anything else around in that cell, but the doors just wont register any new changes. Is there some way to remove records entirely from a save file?