@Muninn This doesn’t happen all the time.
But I can explain how this happens most.
when gammond is the last one alive and didn’t had his skill activated yet the game ends when he hits 0 hp, but at that moment his gold skill starts to work so he has 1 hp and the game is over, thus he’s still alive and you can’t deal with him anymore because the match ended.
I also see him die right away, without his gold being activated, or a few seconds after this skill was activated, most of the time a healing skill is active and makes it that you can kill him before the 12 seconds end.