Guild Wars 2

This has happened multiple times but whenever I log out while having been out of combat for an extended period of time and then choose to log in much later I come back dead. Is this a known bug?

no. because there were time when i laged out of WvW and got defeated and arive in LA dead. this can happen if you decide to rage quit in a event or if you get downed and you log off youll arive where you logged off dead.

and it can be funnie if your in LA and you hear a Asuran scream when they die.