2.0.0.0030 patch, Beast of Winter installed. Katrenn does not drop Katrenn's Grimoire after death, and Torkar does not drop The Maker's Own Power unique belt. Savefile before confronting Torkar is https://www.dropbox....).savegame?dl=0
Other targets from the same quest (Lady Epero and Lord Admiral Imp) are okay, and drop their uniques properly.