I started getting this error message with the new version 90, it wasn't like that in the previous version I used (85). Fallout New Vegas, via MO2. Latest Microsoft Visual C++ Redistributable, antivirus turned off.
[00:00] [NVDLC02ZionCanyon] Generating Object LOD
[00:01] [NVDLC02ZionCanyon] No options file found: C:\Games\FNVLODGen\Edit Scripts\FNVLODGen_HonestHearts_NVDLC02ZionCanyon_Options.txt
[00:01] [NVDLC02ZionCanyon] Saving LODGen data: C:\Games\FNVLODGen\Edit Scripts\LODGen.txt
[00:01] [NVDLC02ZionCanyon] Building LOD textures atlas: C:\Games\FNVLODGen\Output\textures\landscape\lod\NVDLC02ZionCanyon\Blocks\NVDLC02ZionCanyon.Buildings.dds with 70 textures
[00:01] [NVDLC02ZionCanyon] Objects LOD generation error: Error while loading images from memory 000000006C420050 (5570688 Bytes) (file format: dds). Exception Message: Integer overflow
[00:01] LOD generation complete
FNVLODGen_log.txt