So I recently finally completed the last encounter (see link) of all three encounters in duality solo and was very confused. Although I had completed it all solo, I didn't receive the triumph. I read another post saying it had to be in one sitting, and I did take a break between the second and third encounter. What's confusing and upsetting is that nowhere in the description of the triumph does it say the encounters all have to be completed solo [u]in one attempt.[/u] If this isn't a bug and the triumph is intended for a single attempt, it should be made clear on the triumph board. With all that said, guess I'll have to try to do it again (in one sitting apparently)