OK... so I tried playing the weekly heroic with some friends and we were about half way to two thirds of the way done when two of us were stuck in a loading loop. We both waited about 60 seconds before returning to orbit and trying to join the fire team again. When we tried to join the fire team, we were stuck in the loading screen above the planet. We had to abandon the weekly heroic because we couldn't get back to the mission. When I tried to join another friends fire team, I was booted from the game servers entirely and told that I was booted because my permissions have changed or I have been signed in elsewhere. This concerns me because the last thing I want is to get my account hacked and loose all my hard earned progress. Bungie, have you had any word from other players about this problem and if so have you come to a solution yet?