As you can see here 3 people are allin and #280 is the shortest stack.
#280 the shortest stack tripled up and #343 won side pot therefore busting #309
#343 supposed to win the whole bounty because #280 had less chips than #309
looks like #343 was robbed of $315…
Unless there is some kind of special rule for Mystery bounties, #280 shouldn’t have received any bounty money.