6 players inside a 5 man dungeon

[GoneFromOC1]

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[jeffreytje10]

I only see 4 other players. i have try'd few things on almost same way. If you do lfg and leave party and get lagg for 20 sec and login with other client you get the same result. Problem is there's not coming a new player before you leave the dungeon. My idee was leave group and hit bosses before they do so i get the credit, was wondering how much xp you could get.

[GoneFromOC1]

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[jackie1337]

I got the same bugg a few days ago.

Me and a friend joined a random Heroic but then when left before we even started.
I got stuck on loading screen and had to restart wow.

When i came back so was I still in the instance and I got the msg. And they had a full party. You will be ported out in 5.4.3.2.1 but I never got teleport out.
I wanted to try out one thing so I went to the boss that was going to attack, Cast a spell and just waiting for them to kill it. I got the "kill" and was able to loot the item without have to roll =)
I tried HS, teleport to GY, and even die but I didnt get kick out from the instance.
I logged out and got teleported to dalaran in my ghost.

Sorry for my bad grammer =)