There are few bugs I have noticed whilst playing. There might be more. But the ones i have noticed are when holding a map, the player's hands are invisible (no matter the skin, i have noticed it with skin models that do have hands and are the default height. When holding the map in the off-hand, the same problem presists.). Also, when holding a bow in the off-hand, I can't see the drawing back animation so I don't know when my bow is actually ready to fire. (The same problem might also be happening with a crossbow, but I haven't tried it with a crossbow, myself.