So I just ran into my first major glitch in Dragon Age Inquisition. I was in a dialogue situation but could not select any options. Moving the analog stick did nothing and I couldn’t back out of the conversation. Luckily I discovered (by accident) that if I held LB it would bring up the action wheel and then while that was open I could move the stick and select an dialogue option from there. Weird, but just figured I’d share in case this happened to anyone else and you don’t want to load a save.
Best of luck!