Why do I keep being put in a lobby alone? (Halo 3)

I’m being put into a lobby alone, after it says “All players are set and ready to play.” with what appears a full lobby, then I get put into the lobby ALONE. Why?!

[deleted]

> 2535471640896963;2:
> What version are you playing?

I am on the Xbox 360 version.

happens to me too,only happens to my account that played before the 28th so its also linked to the xbox 360 profile bug in some way