For some reason my followers won't follow me. It started around the time I entered the Black Leopard school. Does anyone else have this problem?

When you say stop following, do you mean in battle or in game? If you meant in battle, did you maybe switch them to the support role instead of active role w/o realizing it? Support roles just sit off to the side and grant you a buff while you take on all enemies, they won't really follow you around the battlefield

No, what happened is I would be completely alone. No attack or support. I figured it out though. It was a bug at the black leopard school. The game thought I was still in a one on one sparring session. I had another one with the first brother and every thing was fine after that. At least until I got to the part where I'm jumped by a bunch of acolytes. one of them refuses to join the fight, and if I talk to him after, he says the same thing he said when he ambushed me, and the shopkeeper attacks me.