Having the same problem. Downloaded this for xbox about two weeks ago. In part 2 and haven't seen aurora show up once yet, not even during the crash scene. There are times when the lights will flicker and you can hear the electronic buzzing noise, but no aurora has appeared in the sky yet in the game. Also noticed that the player's breath is red like a fog of blood even when there is no fire shining light on it. Did some effects get messed up with the latest patch?