Don't know if I can class this as a bug, but the _n.dds in Pilgrims Delight - High Hrothgar Shrine Retextures is a format called Ati2 Little googling: "ATI2 - Two (8-bit) components... designed specifically to store Tangent-space (x/y) Normal Maps (z is computed from x/y, at run/load time)" *Taken from here DDSopt was unable to optimize them and then I tryed to load then in Infraview with error "unable to load" :( Black Falls Barrow??? From aLaaa (Then man behind RCRN) on the 13 April 2012 "Bleak falls barrow is a "tutorial" dungeon, as design choice by Bethesda, we decided to not touch it in v2.1 for this reason. Other dungeons are dark and scary as they should be" https://forums.nexusmods.com/index.php?/topic/478803-realistic-colors-and-real-nights/page__view__findpost__p__5095371