This same thing happens to me! I thought it was just my computer, but i guess everyone has this glitch!
Ambrose: Young wizard, come to my office at once! I have something for you! Me: Ooh, new world or spell or something! Ambrose: Keep on searching. We must learn all that we can about malistaire's plans! Me:
I purposely came looking for a topic on this because it just happened to me. Glad I'm not the only one, but at the same time I'm really disappointed he didn't have anything for me. I can't move on in certain worlds because I'm not at the right level, and I've done most of the quests in the others. So when it popped up I was like great something to do. But no.