My weapons and shield are partially transparent when in dark areas and close to an object/surface. This started after I just got rid of claralux because it was too bright and replaced it with lanterns of skyrim. I deleted all save files in between the transition and started a new game. Seems strange that a mod that effects lights outside would do this inside, but that's the only thing that's changed. It's kinda hard to see in this pic since it's so dark, but it's there.