Check if it works starting a new game (coc riverwood or coc whiterun from main menu). If that works, SkyFalls/Mills data may be still baked into the save. See if you can make a "clean" save in an interior after removing SkyFalls/Mills before introducing DynDOLOD. If that doesn't work, generate LOD with SkyFallfs/Mills still in the load order and introduce DynDOLOD to a save that still has SkyFalls/Mills active. Alright, so it is definitely my current character save. I created a whole new character with a vanilla game, I then installed DynDOLOD and I went to whiterun exterior it works, I can see the windmills from a distance. Something must have gotten screwed up on my other characters save game.