Quivers... You can't put arrows in it...
Burning Hands... the spell animation's last frame makes a big black blotch for a split second.
Mine Rocks... Seems the rocks are roaming around or something...
Invincible item monsters... Sometimes I see monsters around that i cant damage... and they dont damage me... when i right click it... it says stuff like "That is Diamond Blade"
Edit:
Another Bug...
The arrows created with the spell 'Create Missile' are the arrows that can be put in quivers... but they cannot be used with bows... wooden arrows and arrows are different =(