In the interest of helping anyone who finds this thread like I did, it turns out that if you move the object too far from 0,0,0 by clicking and dragging it through the LOD world, you get an error where everything you placed in the cell collapses down with their origin on a single point and everything squishes on top of one another. To fix that, you have to change the offset in the cell window under the Interior Data tab, and then make smaller adjustments by clicking and dragging. I ended up having to set my offset to -62000, 62000, -500 or something crazy that. Also, the way I figured that out is by going to the place in the Commonwealth that I wanted the LOD to display, looking at the very bottom of the main CK window and looking at the 'Game Cam' coordinates, using those for the offset values, and then fiddling around with + and - because the offset coordinates are reversed. (Remember to hit F5 to refresh the render window to show changes, and have landscape LOD turned on from the LOD tab in preferences.) Hope this helps someone!