Minecraft Wiki:Issues/12w50b

Crashing/system
Bugs

Gameplay
Bugs

Annoyances

a If slabs are used as roof at the upper end of a block, the slabs underside uses the light of the upperside. Slabs used as roof/floor. The second floor is a closed room with no torches: --Taloon85 12:49, 17 December 2012 (UTC)
 * They are slabs, not slaps, and please sign your posts. This bug came into play as soon as slabs could be placed upside down, it's actually been there for a while. Use ~ to sign your posts, no account needed. #trigger_hurt (I 12:43, 17 December 2012 (UTC)

World generator
Bugs

Annoyances

Mobs/NPCs
Bugs undefined Mobs are not able to change the block niveau. Already when they get to a height difference of one block they mostly walk in circles. 46.115.93.179 08:15, 17 December 2012 (UTC)

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