To everyone trying to run bounty groups, here is info on how to not get it bugged.
2 options to make sure you get 10/10 caches and not 9/10

1.) Make sure the game starts at A3 bonus and then you can complete all the bounties

-OR-

2.) If the game starts with bonus on ANY other act, complete everything EXCEPT (1) bounty from EACH A3 & A4, then follow the chests and complete that last bounty quickly when the bonus pops on that act.

Tired of buying these runs and people not knowing why it bugged and only got 9/10 caches.