Adventure mode problem

[huddlestonth]

While in adventure mode, typically running the act 1-4, I've been watching the bounty, and it just runs through the map, which I am ok with, but it never actually completely finishes the act adventure. As in, it will complete said bounty, but will never speak to tyrael and turn the bounty in. The main thing I am trying to farm for here is rift coins, and I notice it hasn't been working. Any help?