I had been just hitting the home button, closing the software, and opening it up again. Then, I read a tumblr post talking about another method and 'breaking a pattern,' where you hit the power button, home button, then load it up. After a few times, a 'pattern' creates where the villager plots in the same three spots, but that doesn't seem to be happening to me? Fauna just plots at random. Regardless, I've been doing it, and completely shutting off my 3DS to break the pattern.