Extremely poor Raytracing performance

Collision catching walking up non-full blocks (stairs, slabs, etc)

Fire charge plays no sound due to incorrect sound file reference

Adding mobs to the scoreboard results in IOException caused by packet length (multiplayer)

Crash on loading converted level

Command "/testfor" outputs a true signal even after re-running command when a player is teleported

Shift-Clicking smelted ores out of furnace can cause minor visual bug