Just received this error message after generating my LOD:
[Window Title]
DynDOLOD
[Main Instruction]
Error: Item not found while processing Skyrim.esm [REFR:00023612] (places TreeWRTemple01 [TREE:00023611] in GRUP Cell Temporary Children of WhiterunWindDistrict03 [CELL:0001A275] (in WhiterunWorld "Whiterun" [WRLD:0001A26F] at 6,-1))
[Content]
This was after the most recent update.