http://m.youtube.com/watch?v=qzxQhXyLJQ0&desktop_uri=%2Fwatch%3Fv%3DqzxQhXyLJQ0

Do NOT save outside of Luminos City! There has been a game breaking glitch that was detected earlier today that if you save while being outdoors in Luminos City, your game will freeze and you will be unable to continue playing afterwards.