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This Minecraft Wiki page is about the bugs and issues in the latest developmental version, currently 12w39a. For the bugs and issues in the current full release version, see Issues.
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Mojang has an official bug tracker and does not track bugs for any editions of Minecraft on this wiki. Please use the appropriate bug tracker to report and view current bug reports.

Java: bugs.mojang.com/browse/MC.
Bedrock: bugs.mojang.com/browse/MCPE.


For further info, see the issues notice page.
Do not delete this page, any issues currently being recorded are purely for archiving purposes.
Issues
Full releases
Pre-releases
Weekly releases

Crashing/system

Bugs

[!] Changing FOV from 75 to Normal in single player stops the local server; the player can not open chests, crafting tables, furnaces, sleep in beds or manipulate blocks until the client is completely closed and reopened; going to the main menu and entering the world again doesn't fix this problem. First bug I've reported and put on the wiki, not sure if I did it right. 11:56PM, 27th September 2012 (UTC+10)

Annoyances

[A!] World chunks load extremely slowly - much more slowly than player's running speed, which means it is possible to run to the edge of the loaded world before new chunks load. Also, chunk errors are everywhere. --Kcin 14:52, 27 September 2012 (UTC)

Fixed/skipped

Gameplay

Bugs

[A!] I am not sure whether this is a bug or not, but the whither boss seems to attack all visible mobs hostile and peaceful which can completely decimate a world. Also, when there is nothing visible to attack (everything is invisible, or nothing spawned), it goes to the lowest altitude and just sits there. It can also fit through a 1x1 opening if it is above, but not to the side. 204.154.123.79 16:46, 27 September 2012 (UTC)

Annoyances

[A!] I noticed that there are A LOT of lag spikes now, probably due to the new lighting system. I hope they fix this soon KingFlameTail 14:31, 27 September 2012 (UTC)

  • Also having this problem, I'm getting 50 FPS then Minecraft will freeze for 3 seconds. I also had a jump-back problem which normally only occurs on slow servers. My game also froze and refused to generate any chunks or do anything for 10 seconds before continuing. Upgraded to major annoyance. --Stickman5758 15:46, 27 September 2012 (UTC)
    • i am Glad 2 know its not just my computer, cuz i recently upgraded from one thats get 8FPS on average, 2 one that gets about 30. I blame the new lighting systemKingFlameTail 16:00, 27 September 2012 (UTC)

Fixed/skipped

Blocks

Bugs

Annoyances

Fixed/skipped

Items

Bugs

[X] Painting still do not work properly. Big paintings can't be placed on walls that would normally work but instead they can be placed on walls that are too slim for them resulting in 4x3 paintings that are only supported by two blocks. Also paintings can be placed overlapping each other. This bug has been present since 12w36a. --☺ Sven ? ! 14:14, 27 September 2012 (UTC)

Annoyances

Fixed/skipped

World generator

Bugs

[!!] When generating a new Superflat world in 12w36a/12w37a/12w38a/12w38b on my computer will crash. It's a normal Superflat, or customizable, always crashes.

[X] In ocean biomes, underwater air pockets several blocks in size are often generated. Screenshot: http://s15.postimage.org/xa2d1fm61/underwater_air_pockets.jpg --Kcin 14:49, 27 September 2012 (UTC)

Annoyances

Fixed/skipped

Mobs/NPCs/animals

Bugs

[!] Tamed wolfes will despawn if left alone in a unloaded chunk

  • If this is true, I think I will update it to major bug as it concerns loss of data... ~~Chromer

Annoyances

Fixed/skipped

Graphical/lighting

Bugs

[X] Upside down half slabs and stairs placed on rails can lead to black spots on the rails. Redstonehelper 13:44, 27 September 2012 (UTC)

[X] All stairs are always pitch black. --☺ Sven ? ! 14:09, 27 September 2012 (UTC)

  • I was wrong. Only already placed stairs are black. They just need a lightning update. But the inside of stairs looks too dark. --☺ Sven ? ! 14:24, 27 September 2012 (UTC)

[X] The top of farmland is always pitch black. Updating the lightning doesn't help. --☺ Sven ? ! 14:26, 27 September 2012 (UTC)

[X] Pumpkins emit more light from the non-carved face

  • The side facing Template:F always emits the most light. --☺ Sven ? ! 14:49, 27 September 2012 (UTC)

[X] A slab floating in the air half a block above the ground, beside a slab on the ground lets through light.

File:2012-09-27 18.32.24.png

Annoyances

Fixed/skipped

Sounds

Bugs

Annoyances

[A] Footsteps on sand sound a bit too heavy, almost like walking in mud. --Kcin 14:56, 27 September 2012 (UTC)

[A] Diving into water from a high altitude just doesn't feel right with the new sounds. I miss the old "badunk" sound. :( --Kcin 15:01, 27 September 2012 (UTC)

Fixed/skipped

Menus

Bugs

Annoyances

Fixed/skipped

In-game interfaces/HUD

Bugs

Annoyances

Fixed/skipped

Chat/commands

Bugs

Annoyances

Fixed/skipped

Language/text files

Bugs

Annoyances

Fixed/skipped

References

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