[FNV]XLODGen/BSAArchPro LOD packing bug - VNV

Using LOD Guide | Viva New Vegas

I've regenerated and followed all steps multiple times, but it seems as soon as I pack the LOD files - even if all uncompressed - the LOD bugs out and there's missing textures in the distance. Is the function currently buggy?

Leaving them as loose files Just Works(TM).