Hynjoku and Ahab WheathoofMania has compiled a list of hunter specific issues with the current World of Warcraft patch 2.1.3. Each item varies in severity, and they are all good, but my favorite is

"Ahab Wheathoof is appearing when Track Beasts is enabled."

Personally, this seems appropriate to me. After all, he is a cow. That being said, my druid friend seems to think I'm a Tauren hater.

Head over to Mania's Arcania and check things out. If you know of some issues not on that list, I suggest you leave a comment. As for me, I have to go make nice with my Tauren friends.