my skyrim is fairly modded and i get this effect where sometimes when i get hit by someting a weird purple orb thing just appears and turns me invisible for a few seconds or something and sometimes happens to npcs too. im not the only one who gets this im sure of it cuz i found some other guy that has this prob (http://forums.nexusmods.com/index.php?/topic/1923024-weird-dremora-purple-orb-effect-when-hit-no-idea-why/) but doesnt have any replies at all http://forums.nexusmods.com/uploads//monthly_07_2014/post-14247604-0-64567600-1405745961.jpg (pic not mine doe.)