Minecraft Wiki:Issues/12w50b

Crashing/system
Bugs

Gameplay
Bugs

Annoyances

World generator
Bugs

Annoyances

Mobs/NPCs
Bugs

Annoyances

Graphical/lighting
Bugs

Annoyances

Sounds
Bugs

Annoyances

Menus
Bugs

Annoyances a When shift-clicking items in the right slot, the trade will appear to work as normal. However, when closing the trade GUI, the player will drop a majority of whatever items were used to trade, and whatever items received will act as fake items, disappearing upon being clicked. It has an entry on the Issue Tracker, but due to the Affected Version being incorrect (1.4.2 only), it has yet to be fixed: https://mojang.atlassian.net/browse/MC-1580

In-game interfaces/HUD
Bugs

Annoyances

Chat/commands
Bugs

Annoyances

Language/text files
Bugs

Annoyances