I haven't had many drops since the fix from the update, though I did have Kelina drop a few days ago and Lola about a week before that. I do have to say I dropped way off on my boss battles after getting so many after the original update. I did work quite hard unsuccessfully to get Teacher Deidra. The only thing I can figure is that aside from the "fixes" with the affection items, they also adjusted the drop rate.