Hello Trolls. The bonus cache situation is a bit tricky and I think just about all of us at one time or another have experienced the issue you speak of. The problem arises due to the fact that both act 3 and 4 both share the same town where their respective quests must be turned in to Tyrael. Let's say the bonus for act 3 is active, that quest series must be turned in and it's bonus cache collected BEFORE your party completes all of the quests in act 4 or else when you go to turn in for your act 3 reward, due to the turn in location being shared between both acts, the game will default to