Update – thanks to a kind soul that messaged me in game and got me in to an active event zone i was able to re-do the boss fight and get another chance at the chest.
And then.. right during the fight – a new build is available and the game will restart..
Everyone put everything into it and took him down – those that could, ran for the chest and got the reward right before the game re-set. I was lucky – i got the reward right before the game shut down and restarted. But still.. i really feel bad for those that were unable to get a reward after all that hard work. 
Showing Posts For Poly Gonal.4573:
So i go out of my way to participate in the final Lost Shores Boss event, pony up for armor repairs, keep fighting my butt off for hours and rez those who fall. Only to die at the end and not get rezzed by anyone when the chest spawns. i called out in map chat a couple of times for a rez – no one bothers. So waypoint, run back and.. no chest. gone.
Screwed up event from the start, and screwed at the end. awesome weekend.
Thanks