Updated, tried running it on a profile with absolutely no mods enabled including UFO4P, and got a similar issue. Ended immediately with this:
[00:00] Generating LOD
[00:00] [Commonwealth] Generating Terrain LOD
[00:00] [Commonwealth] Gathering CELL and LAND records
[00:03] Error processing cell LaytonTowersExt [CELL:0000E508] (in Commonwealth "Commonwealth" [WRLD:0000003C] at 0,-8): Assertion failure (E:\Delphi\Projects\xLODGen\Core\wbImplementation.pas, line 6644)
Error processing cell LaytonTowersExt [CELL:0000E508] (in Commonwealth "Commonwealth" [WRLD:0000003C] at 0,-8): Assertion failure (E:\Delphi\Projects\xLODGen\Core\wbImplementation.pas, line 6644)
Bugreport.txt: https://pastebin.com/5i34sj1v
Event logs: https://pastebin.com/2LAKSimx
FO4LODGenLog: https://pastebin.com/Ak1h30Ny
I then tried going back to my main profile just to see and to my surprise it ran for a little while before crashing, generating some meshes and textures.
LODGen_log: https://pastebin.com/P0pEDWAt
FO4LODGen_Log: https://pastebin.com/kJgbrzYA
Bugreport: https://pastebin.com/U8fL3qMH