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This Minecraft Wiki page is about the bugs and issues in weekly development version 12w41b. 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

[!!] [SMP] Windows As with the previous snapshots, server is periodically crashing with out of memory errors. It just did it to me when merely walking around. DarkWolff 14:45, 13 October 2012 (UTC)

  • [!!] [SMP] LinuxSame here. Last stable snapshot I believe was 12w36a. Every one since has crashed periodically with some type of memory issue. This has happened to me on Win7 and now on Linux. Launching with command line of java -server -Xmx2G -Xms2G -XX:+UseG1GC -jar minecraft_server.jar --MuttJunior 17:40, 13 October 2012 (UTC)

[!!] Reproducible crash, stack overflow.

Steps to reproduce:
-- 12w41b vanilla client
-- single player
-- create a new world
-- name 'rr'
-- creative mode
-- seed 'rr'
-- superflat with the redstone ready preset
-- everything else at default
-- place a dispenser
-- place a water bucket inside the dispenser
-- place a cobble block in front of the dispenser, blocking its mouth
-- place a lever behind the dispenser
-- throw the lever
Most of the world creation parameters are probably irrelevant, they're just there so anyone can go from zero to reproduce without thinking.

In case anyone is inclined to say "This is something no sane person would ever do": dispensers will dispense other items through a solid block and I thought I could make an evil trap if they did the same with water/lava. That's what I was trying when I first got the crash. So yes I'm evil but not insane.

Although the reproduction is in CSP, I originally experienced the crash in SSP. I don't have access to a server I'd be comfortable crashing so I don't know about SMP. --HappyMattock 03:03, 14 October 2012 (UTC)

[A] The game may crash if you use the F3+H key to show durability on items and then move your mouse over a map (not a blank one). It seems to only happen on my main save game (Survival single-player) I've bin using for the snapshots. This does not happen when I tried it in another save. It may just be older maps(item) in single player that have this bug. Can someone else confirm? --Mzullos5 02:16, 13 October 2012 (UTC)

  • It stopped crashing on me. I just moved the maps(item) out of the chest they were in and the bug stopped. --Mzullos5 02:46, 13 October 2012 (UTC)
  • The maps(item) just vanished on me. Looks like they were corrupted some how. --Mzullos5 02:50, 13 October 2012 (UTC)

Annoyances

Fixed/skipped

Gameplay

Bugs

[X] If you craft a colored leather while you are in creative, and pick it up, then if you drink a potion of invisibility, then a bucket of milk, your leather armor will be lost.

  • Cannot replicate, more info? --193.209.10.1 18:38, 13 October 2012 (UTC)

[X] (Unless this is an update I'm not aware of) the Nether portal instantly teleports you to the Nether; it doesn't give you a moment to stand in the portal. --Keithicus420 02:07, 13 October 2012 (UTC)

  • In Creative you will bete instantly teleported. It was that way for several updates. — MiiNiPaaT|C 06:18, 13 October 2012 (UTC)

[X] An anvil 8 blocks high can kill a player without any armor, but cannot kill a player wearing armor (even if it is only a leather cap without enchantments) even though it is 255 blocks high. Armor shouldn't make that much of a difference. In fact, only about 2 hearts of damage is received. --GrygrFlzr 03:50, 13 October 2012 (UTC)

[X] Linux Boats float in midair above the water and/or sink below the water after placing a boat in the water, saving the map, opening the map, and then touching the boat.

File:2012-09-28 08.24.19.png

A boat floating in midair above the water in an enclosed dock.

To reproduce: 1) Place boat in water; 2) Save the map; 3) Open up the same map; 4) You will see the boat floating in midair just above the water; 5) Nudge the boat slightly by going adjacent to it and it will drop into the water; 6) After dropping into the water, it will actually start to fill with water and sink slowly; 7) Go next to it and the boat will float to the top once again; 8) After that, it may start to sink again; 9) This occurs when placed in water in an enclosed dock, and sometimes in open water. --Eugeniusz 09:02, 13 October 2012 (CEST)

[X] Dropping from low heights can do damage on certain occasions. Video from Vechs. -- Mustek 22:44, 13 October 2012 (UTC)

Annoyances

[A] If the player lines up three left-side-hinged doors and opens all three in Creative Mode, and then tries to break all three by holding down left-click through each, the middle door will close instead of being destroyed like the first and third. Left-click shouldn't do that - it might be a bug with door detection. --MegaScience 21:48, 12 October 2012 (UTC)

  • These screenshots should explain the setup better. http://imgur.com/a/GoUSc I also somehow got experience while breaking them, although that was probably indirect. Confusing. --MegaScience 21:53, 12 October 2012 (UTC)
  • When you break first door, it will send block udate signal to the middle door and it will close. You can place block in front of the doo, open door and break block — door will close. Same here. When Jeb broke the doors and then fixed them, he stated, he will not fix this behavior. — MiiNiPaaT|C 06:23, 13 October 2012 (UTC)

[A!] [Ad] If a player has the proper tools, they can remove blocks in adventure mode. They can also place blocks in adventure mode. Perhaps there should be a fourth gamemode which prevents players from placing/removing blocks altogether? Otherwise, some adventure map makers are severely restricted in that they must prevent players from obtaining any blocks or tools (or the crafting materials therein). This is very difficult, considering a player can even get items such as shovels from killing zombies. You can't even let your players have swords, else they can break crops, cobwebs, etc! A "Guest" gamemode, preventing all block removal/placement, would be very helpful to maps and servers alike where the player is not meant to alter the map, regardless of what items they are allowed to obtain (although, they should still be able to open doors, trigger switches, etc). --WolfieMario 03:51, 13 October 2012 (UTC)

  • As a map developer, I feel like showing great support here. People still add in topics the generic "don't break any block" rule, which somehow injures some aspects of the map. Again, 100% support here! --201.86.231.77 04:11, 13 October 2012 (UTC)
  • Or have adventure gamemode with completely configurable user rights. --193.209.10.1 18:47, 13 October 2012 (UTC)

Fixed/skipped

Blocks

Bugs

[X] Anvils still drops sideways when its pointed edges are pointing towards the east/west. --GrygrFlzr 10:07, 12 October 2012 (UTC)

[!!] Dropping an anvil on an Endercrystal crashes the game.--Tyzoe98 9:16, 12 October 2012

  • Crash report. --RichardG867 22:33, 13 October 2012 (UTC)

[X] [Cr] Breaking the top half of a door in creative mode still drops a door item. --GrygrFlzr 10:32, 12 October 2012 (UTC)

  • Same with beds --Godnian 11:19, 12 October 2012 (UTC)
    • To clarify, this happens to the pillow part of the bed, correct? --GrygrFlzr 11:38, 12 October 2012 (UTC)
      • Yes, this has always happened to the upper part of a block, with the exception of Sticky Pistons, which used to just remove the top part without a drop. --Trigger hurt 11:47, 12 October 2012 (UTC)

[X] Very damaged anvils that drop from at least 6 blocks high will become a glitched entity that cannot be removed until the map is reloaded. --GrygrFlzr 11:38, 12 October 2012 (UTC)

  • Confirmed to only happen with the Very damaged anvils. The normal and Slightly damaged anvils do not have this problem even when dropped 255 blocks. --GrygrFlzr 11:50, 12 October 2012 (UTC)
    • Ghost Anvils will drop into an anvil after a couple of seconds, the ghost anvil will disappear. --Icelate 13:18, 12 October 2012 (UTC)

[X] Anvils that drop on non-solid blocks destroy the block, but an anvil dropped on a plant such as flowers or saplings (excluding tall grass, ferns, and dead bushes) makes the anvil drop into an item. --JNRM3 15:07, 12 October 2012 (UTC)

  • Seems odd, that it will literally eliminate non solid blocks, but something as simple as a flower causes it to drop. --Trigger hurt 15:27, 12 October 2012 (UTC)
File:2012-10-14 14.46.55.png

The damaged texture "block".

[X] When 2 zombies (or sometimes 1 maybe) have tried to destroy 1 door at once then the door is removed a "damaged block" textured block is left behind which zombies can sometimes still destroy but the player can't. The block works the same as any other transparent blocks as you can't see the other side of it. This is a very hard bug to test for and there probably has heaps more variables. I wouldn't be surprised if the Wither could produce the same affect when munching on blocks.

Annoyances

[A!] When it did work, naming items was extremely expensive for a simple name change. Major annoyance because of the value of levels. --Bobbysq 18:31, 12 October 2012 (UTC)

  • Should be free. (also never say too expensive.) --93.106.214.141 20:30, 12 October 2012 (UTC)
  • It doesn't necessarily need to be free, but perhaps, if you place an enchanted item on an anvil and attempt to rename it (without repairing it with another item), it really shouldn't charge you for the enchantments that are already on the item. I mean, renaming on its own does not change the enchantments or provide any benefits - it should have a fixed price, instead of rising sharply as you get better enchantments. The way it is now, you can't name extremely well-enchanted items, thanks to the total cost going above 40 due to the item's high base cost (although, with the changes in 12w41b, it seems like you actually can (barely) rename a SharpIV KbII FaII LootIII sword, which is as good a non-anvil-spliced diamond sword you'll get. But if you upgrade that to SharpV with an anvil, it's suddenly past the limit and can't be renamed - and renaming it first prevents you from upgrading it... I think you can guess what players will choose between a rename and an upgrade :p). --WolfieMario 05:23, 13 October 2012 (UTC)

Fixed/skipped

Items

Bugs

Annoyances

[A!] Maps cannot be enlarged. The same map will output - Scaling will still be 1:1

Fixed/skipped

World generator

Bugs

[!] [MP] Server world generator does not work. Link: IMGUR! (It's been like that for a few minutes now) --31.210.185.169 14:32, 12 October 2012 (UTC)

Annoyances

Fixed/skipped

Mobs/NPCs/animals

Bugs

[!] After standing idle in a SSP world for more than a couple of hours, the world becomes RIDICULOUSLY laggy to the point of ending the process via task manager is required. My computer is pretty good, it starts lagging out at about 3,500 entities, and so when I looked with F3 I saw the game had over 4,300 entities loaded and rendered. I was in a chicken farm collecting eggs, so I just thought it was teh chickens and started killing them. Then, to reduce lag, I went outside to get TNT to kill chickens faster. That's when I saw hundreds of mobs in my yard. They were not moving, unresponsive and didn't do anything. They couldn't be killed but each one counted as an entity. So basically, after a while the spawn system completely breaks.

[X] Iron Golems will randomly become hostile and passive towards the player, regardless of any actions towards them or villagers.

[X] Withers can not destroy anvils. As such, a player can use them to make a very expensive cage for a Wither, if they have such determination. Considering they can break Obsidian among other blocks, it stands to reason they should be able to break this - it just isn't accounted at the moment. MegaScience 06:36, 13 October 2012 (UTC)

[X] When you are next to an item frame, mobs will sink through wooden planks.

Annoyances

[A] Bats can trigger pressure plates - annoying when they spawn in dark enclosed spaces such as vs class item drop rooms.

[A] Bats still trample farmland, which is annoying if you have large underground farms. --JNRM3 02:46, 13 October 2012 (UTC)

Fixed/skipped

Graphical/lighting

Bugs

[X] Other player fishing line is invisible, if player who logged in, had logged out when other player did not have fishing line casted. --93.106.214.141 16:37, 12 October 2012 (UTC)

[X] When reaching the nether, the portal animation plays forever (even in creative) and never sends you back. I think this happens because the player is stood in the portal when the nether is reached.

Annoyances

[A] Other player fishing line is bit off still, also it doesn't follow the micro movement. pic --93.106.214.141 16:37, 12 October 2012 (UTC)

Fixed/skipped

Sounds

Bugs

[X] Throwing an Eye of Ender underwater plays the splash sound until it reaches the surface.

Annoyances

Fixed/skipped

Menus

Bugs

[X] When turning fullscreen off or on in the video settings then hitting F11 to switch back it doesn't work and the fullscreen status is incorrect (assuming was correct in the first place) e.g. it says 'Fullscreen: ON' when in windowed mode.

[X] When the player is standing in a nether portal (all gamemodes) the game cannot be paused nor can the inventory be opened.

  • This is intentional and was done back in Alpha as a bugfix. LB(T|C) 01:29, 14 October 2012 (UTC)
  • I Just searched the Alpha version history and couldn't find it, I'll take your word for it but what did it fix?

Annoyances

Fixed/skipped

In-game interfaces/HUD

Bugs

[X] The name field in the anvil GUI don't work and is uneditable --Raffox97 09:50, 12 October 2012 (UTC)

  • Will still work when merging 2 tools together. Also note that the anvil should now be able to rename every item in-game. --GrygrFlzr 10:00, 12 October 2012 (UTC)
    • Temporary workaround for renaming only one tool - place two tools of the same type. Type a name for your item, then remove the second tool and take the result. --GrygrFlzr 00:58, 13 October 2012 (UTC)

[X] If the Inventory is open when a potion affect is cast upon a player the potion affect status does not show until the inventory is closed then re-opened again. If the inventory is left open with a status displayed until it wears off the inventory remains pushed over as if it ware still there until the inventory is re-opened.

[X] None of the F-buttons (including F3's combinations) work while the invetory (or other interfaces like furnaces) are opened or the game is paused except for: F2, F11 and I think F3+S (worked in 1.2.5 and 1.3.2). I couldn't figure out a way to test F3+T and F3+S (only when my sound isn't working), can anyone help me out?

Annoyances

[A!] Renaming Book and Quill makes it impossible to write in it but you can still sign it.

[A!] You can't access the Durability feature if you need the FN key on your keyboard to access F3. It does not allow it. Very inconvenient for some like myself. ---Mbon29

[A] You can't hover empty inventory slot and press 1-9, to place item there, but you can swap items by pressing 1-9. --93.106.214.141 15:20, 12 October 2012 (UTC)

  • Seems like more of a feature, as annoying as it is, to just simple swap items like that. Not very useful in my situation, but still a nice feature. --Trigger hurt 15:32, 12 October 2012 (UTC)
    • Also: YOU'RE DOING IT WRONG. The idea is you hover over an item and if you have an empty hotbar slot it will transfer that item to that slot, much like shift click. --Trigger hurt 15:34, 12 October 2012 (UTC)
      • Take no offense to the YOUR DOING IT WRONG thing, i like to joke around :D --Trigger hurt 15:35, 12 October 2012 (UTC)
        • No I am not, I'm simply noting it doesn't work other way around. And that makes it annoyance. --93.106.214.141 16:01, 12 October 2012 (UTC)
  • you send an item to the specific slot of the hot bar pressing 1-9, you can't send/switch back if you click in the hotbar, since the game can't know to which item/block you want to change it with. Just use shift or press in the inventory.
  • He want to say, that he pressing number key on empty inventory slot and expect to corresponding item from hotbar to move to that place. Basicly to swap item with empty space. — MiiNiPaaT|C 17:33, 13 October 2012 (UTC)
  • Imagine how quickly you could organice your inventory from complete mess with this ability. --193.209.10.1 19:18, 13 October 2012 (UTC)
    • I definitely agree. Imagine if Mojang just took the week to relax and fix and put in all the annoyances. It really adds up and makes the game better, plus it gives a better sense of accomplishment because you fixed a lot of things!--76.168.136.118 20:54, 13 October 2012 (UTC)

[A] The performance graph covers the pause menu.

Fixed/skipped

Chat/commands

Bugs

[X] When saving a screenshot then clicking on the file name in the console, Minecraft treats it as a web link and opens for e.g. '2012-12-25_00.00.00.png' as is without the file:// prefix or the path in your default web browser instead of opening '%appdata%\.minecraft\screenshots\2012-12-25_00.00.00.png' in your default image viewer or at least with the prefix and path.

Annoyances

[A!] Zombies, endermen, ghasts, Withers and Ender Dragons are unaffected by /gamerule mobGriefing, only creepers are affected. If this is intended behavior "mobGriefing" is an inappropriate name for the rule.

  • Zombies can also still break doors, and endermen can pickup/place blocks. In other words, only creepers are affected by this gamerule. LB(T|C) 01:33, 14 October 2012 (UTC)
  • I just searched the Alpha version history and couldn't find it. I'll take your word for it but what bug was this meant to fix?

Fixed/skipped

Language/text files

Bugs

Annoyances

[X] In Spanish (Mexico), the GUI title for the anvil was not translated from English.--76.168.136.118 20:48, 13 October 2012 (UTC)

[A!] In Pirate Speak Cobblestone and Gravel are both called "Pebbles". Given their similar textures, this could cause confusion.

[A!] In the search tab in the inventory when using Pirate Speak "Search for yer loot" touches the text box.

[A!] In Spanish (Mexico), the names for item frames, potatoes, and carrots are not properly capitalized. --76.168.136.118 20:48, 13 October 2012 (UTC)


Fixed/skipped

References

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