While generating LOD for the Tamriel worldspace, LODGen crashes with the error here. I've narrowed the problem down to Holds - The City Overhaul for SSE, testing both with my current load order, and on a fresh installation. I'm not sure how to narrow down the cause any further, especially with the large amount of meshes Holds includes. As an anecdotal point, when testing without other mods, it took longer for LODGen to crash, but the same error did happen. No idea why this is happening, but I'd really like for it to stop.