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.
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Full releases
Pre-releases
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Weekly releases
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Crashing/System
Bugs
[!!] Crash report below.
| Crash Report |
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---- Minecraft Crash Report ----
// Why did you do that?
Time: 6/14/12 8:34 AM
Description: Exception in server tick loop
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(String.java:1768)
at el.e(SourceFile:192)
at fq.m(SourceFile:494)
at net.minecraft.server.MinecraftServer.a(SourceFile:728)
at rr.a(SourceFile:226)
at aay.b(SourceFile:88)
at net.minecraft.server.MinecraftServer.n(SourceFile:356)
at net.minecraft.server.MinecraftServer.run(SourceFile:285)
at cp.run(SourceFile:458)
Relevant Details:
- Minecraft Version: 12w24a
- Operating System: Mac OS X (ppc) version 10.5.8
- Java Version: 1.5.0_30, Apple Inc.
- Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Apple Inc.
- Memory: 2011348040 bytes (1918 MB) / 2123628544 bytes (2025 MB) up to 2123628544 bytes (2025 MB)
- Player Count: 1 / 15; [eg['inertia186'/129, l='boo', x=1757.82, y=9.00, z=-1981.20]]
- World swim2 Entities: 0 total; []
- World swim2 Players: 0 total; []
- World swim2 Chunk Stats: ServerChunkCache: 0 Drop: 0
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- Probably it's your Java version (I don't know if Apple provides more java updates to 10.5, for me on Lion, it does) --83.38.243.162 15:51, 14 June 2012 (UTC)
[X] Always when I'm push the open texturepack folder button minecraft freeze. I have to use the taskmanager to stop minecraft. Then the windows message appears java se binary don't react anymore (I think so, because my message is in german). This happens also in a new fresh installation of minecraft 1.2.5 and in all snapshots later. My system is Win 7 64 bit with the newest oracle java sdk 7u5 64 bit (not updated, new installed) and a fresh minecraft 1.2.5 installation. I have tested all java 64 bit versions since 7. Please don't write that it work for you, because I heard this before. I don't understand why this happens on my computer, I have a new Dell XPS Laptop and all programs fresh installed. --reptile311
- As much as I'd love to help, I can't reproduce this on 1.2.5 or any snapshot that follows. I have a Dell Inspiron N5030 with Windows 7 Ultimate and Java JDK 7u5 64-bit. --CaMoreno3 16:45, 14 June 2012 (UTC)
- Can it be a thing with the rights in Win 7? I have the minecraft launcher in a folder in the standard download folder from user (Hubertus, my username). Only the launcher .minecraft is in the roaming folder.
- Same happens here (Win7, i7 2nd gen, 6gb ram, java 1.7). -- Mustek 23:07, 14 June 2012 (UTC)
[X] Error messages in the console when players attempt to log into a 12w24a server with a 1.2.5 client.
| Crash Report |
|---|
java.io.IOException: Received string length longer than maximum allowed (9984 > 16)
at ye.a(SourceFile:219)
at of.a(SourceFile:30)
at ye.a(SourceFile:177)
at mj.h(SourceFile:215)
at mj.c(SourceFile:15)
at nd.run(SourceFile:92)
2012-06-14 08:27:44 [INFO] /66.131.252.135:50182 lost connection
java.io.IOException: Received string length longer than maximum allowed (6656 > 16)
at ye.a(SourceFile:219)
at of.a(SourceFile:30)
at ye.a(SourceFile:177)
at mj.h(SourceFile:215)
at mj.c(SourceFile:15)
at nd.run(SourceFile:92)
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[!!] Crash when typing /time set day
| Crash Report |
|---|
---- Minecraft Crash Report ---- // My bad. Time: 14/06/12 14:43 Description: Exception in server tick loop aqh: The save is being accessed from another location, aborting at gd.b(SourceFile:63) at acv.s(SourceFile:2144) at aqc.a(SourceFile:84) at ain.b(SourceFile:127) at ain.a(SourceFile:172) at adc.c(SourceFile:96) at pj.o(SourceFile:370) at pj.n(SourceFile:338) at aqx.n(SourceFile:106) at pj.run(SourceFile:285) at dl.run(SourceFile:458) Relevant Details: - Minecraft Version: 12w24a - Operating System: Windows XP (x86) version 5.1 - Java Version: 1.6.0_18, Sun Microsystems Inc. - Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc. - Memory: 373786408 bytes (356 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB) - Player Count: 0 / 8; [] - World flat 2 Entities: 0 total; [] - World flat 2 Players: 0 total; [] - World flat 2 Chunk Stats: ServerChunkCache: 0 Drop: 0 |
--Manuelschi 17:47, 14 June 2012 (UTC)
- The command is /time set [0-24000], but that crash shouldn't happen. -- Mustek 23:08, 14 June 2012 (UTC)
[!!] /[?] Potential odd, but very serious crash. crashes ALL keyboard/mouse input, rendering the entire laptop/PC unplayable. game continues, while any buttons pressed remain pressed. Has only happened to me while playing Minecraft. Has only happened in a recent snapshot. I very rarely go in Singleplayer, so may or may not be multiplayer-exclusive. while extremely serious, is fairly uncommon. I run a high-end Alienware laptop, so memory consumption is not a factor in my opinion. Can any other users confirm this is a Minecraft bug? --Kizzycocoa 21:08, 14 June 2012 (UTC)
- Not seen so far with this snapshot. Anything else updated except Minecraft ? Yesterday was Microsoft-Patchday and Oracle issued Java 7U5 a few days ago... --Kumasasa 21:29, 14 June 2012 (UTC)
Annoyances
[A] Some systems may experience a FPS drop since 12w18a varying from 10 to 3 fps when in 1.2.5 average was of 10-30 fps (My system specs: 32-bit processor, less than 2 GB or RAM, 512 MB Video Card, Windows XP SP2). --Manuelschi 17:22, 14 June 2012 (UTC)
[A] User death messages are displayed in chat but not recorded in the server.log file. This can make it tricky to settle disputes on vanilla servers. --Darkinnit 20:22, 14 June 2012 (UTC)
Fixed/Skipped
Gameplay
Bugs
[X] You can't use ⌘-Q to quit Minecraft. TorchicBlaziken 23:21, 14 June 2012 (UTC)
[X] You can't use ⌘-V to paste text into Minecraft, you must use the Windows version instead. TorchicBlaziken 23:21, 14 June 2012 (UTC)
[X] Arrows fired from dispensers do no damage in peaceful mode, arrows bounce off of you. – Unsigned comment added by 23.28.17.215 (talk). Sign comments with ~~~~
[X] you can still look trough the ground way too often because the world is generating too slowly.--League 20:30, 14 June 2012 (UTC)
[!] [Su] [SP] Mobs and entities are still periodically freezing. Exiting the world to main menu resolves this, but any progress made up to the point of freeze is not saved. This is an issue that has persisted for the last several snapshots. It keeps being marked as fixed, but obviously it is still there. --71.61.206.196 19:49, 14 June 2012 (UTC)
- In my case, entities and mobs freeze permanently , and i cannot either open or use chests or crafting tables. – Unsigned comment added by 89.154.76.103 (talk). Sign comments with ~~~~
[!] The contents of an enderchest are cleared upon player death in SMP and SSP. --IPeer 21:31, 14 June 2012 (UTC)
- Confirmed for SSP and CSP. --Kumasasa 21:56, 14 June 2012 (UTC)
[!] [Cr] [SP] The End is completely empty (no obsidian platform, no island) for the first time traveling there. Endermen and me falling into the void. When travelled the second time through the same portal, everything was ok. The ender dragon was already defeated in that world. That end dimension was created 12w23b. Could reproduce twice by quitting and restarting the game. --Kumasasa 17:46, 14 June 2012 (UTC)
[X] when you publish a server the kick and ban command don't work anymore for the publisher. --League 18:25, 14 June 2012 (UTC)
[X] when you place a texturepack in the texturepackMP folder and publish your server. the player who joined doesn't get the message: this server reccoments the use of a certain texturepack. do you wish to install it automagically? --League 18:26, 14 June 2012 (UTC)
[X] when you click publish and someone joins your world and the one who published the server leaves. the one who joined gets the message ... left the server. the hoster who left the server is still there but it doesn't move. also the redstone freezes and levers don't work anymore. you can still delete blocks but the next time the hoster opens the world the damage is gone. --League 18:26, 14 June 2012 (UTC)
[X] when you publish a world and people join your world. the tab button (show players online) doesn't work. the one who just joined your world however. can use the tab button. --League 18:26, 14 June 2012 (UTC)
[X] If the player exits the world while riding boat/minecart, after reloading the world he turns out to be outside it. --IntKecsk 15:25, 14 June 2012 (UTC)
- I'm not sure this is a bug, I mean, what should happen if the minecart is pushed/removed? if your'e doing it on multiplayer, people may mess with your spawn location. --RonAsor 17:35, 14 June 2012 (UTC)
[X] Some players may experience an insane amount of lag! Fixed by restarting minecraft. --sergnoff
- Vote to downgrade, as I don't think this is a problem with Minecraft itself. It may be your machine/java version/OS/anything, I don't experience much lag on my Windows 7 laptop with latest java. --CaMoreno3 16:04, 14 June 2012 (UTC)
[X] Minecarts placed on powered rails will sometimes start moving on there own without any outside interaction. They seem to stop after sometime even when on powered rails. This seems to happen when a large amount of minecarts are near by. – Unsigned comment added by 90.200.49.167 (talk). Sign comments with ~~~~
- Vote to downgrade. They will start moving on their own because the other Minecarts will push others, thus causing some to start moving "on their own". --easton39 5:03, 14 June 2012.
- This user may be talking about a single minecart. --CaMoreno3 17:08, 14 June 2012 (UTC)
- Downgraded. Please read the top of the page for instructions on reporting bugs. Also see this page: Classifying bugs. --CaMoreno3 17:08, 14 June 2012 (UTC)
[X] Chunks that have absolutely no block in them will not display blocks you place in them until you reload the world. – Unsigned comment added by Redstonehelper (talk • contribs). Sign comments with ~~~~
[X] Holding the jump key in flowing water under a block (or just up to a certain height) like in this picture will kill players, even though to it looks like they are not underwater to them. Redstonehelper 19:10, 14 June 2012 (UTC)
Annoyances
[A] The enchantments with "Protection" in the name besides Protection don't provide more protection to a specific thing than Protection does, making those enchantments completely outclassed by Protection. To make matters worse, you can only get one "Protection" enchantment on a piece of armor. TorchicBlaziken 20:41, 14 June 2012 (UTC)
[A] The player cannot swim out of downward flowing water while drowning. The damage taken produces a small amount of knockback, which in combination with the flow, keeps the player from swimming out of the water. --CaMoreno3 15:16, 14 June 2012 (UTC)
- This is different from the behavior in 12w23b, as the player was unable to swim out of water (while drowning, regardless of flow) or lava at all. The player can now swim out of lava regardless of flow. The change leads me to believe that this annoyance has been addressed. Is the inability to escape downward flowing water intentional? --CaMoreno3 15:16, 14 June 2012 (UTC)
[A] Flowing lava does not push the player in the same way that flowing water does. --CaMoreno3 15:16, 14 June 2012 (UTC)
[A] When respawning, the view goes crazy. -- Mustek 14:46, 14 June 2012 (UTC)
[A] When opening a world, the game first shows you the main menu screen or the chose world menu screen momentarily.--sergnoff
- That's not momentarily, that's for a few seconds - quite distracting. --Kumasasa 18:04, 14 June 2012 (UTC)
[A] If a dispenser has both a lava bucket and a water bucket inside occasionally one will overwrite the other. (e.g. Lava bucket dispensed, then water bucket dispensed leaving water dispensed and two empty buckets.) -- LilDaveyP
Fixed/Skipped
Blocks
Bugs
[X] The following items cannot be placed on upper slabs or upside-down stairs, Example: --CaMoreno3 14:51, 14 June 2012 (UTC)
- Snow Layer
- Bed
- Lever
- Wooden Pressure Plate
- Stone Pressure Plate
- Wooden Door
- Iron Door
- Redstone
- Redstone Repeater
- Rail
- Powered Rail
- Detector Rail
- String (floats above upper slabs or stair blocks when placed)
- Torches (including redstone torches) are placeable on stairs but not slabs, which is needlessly inconsistent.
- That is intended, stairs and slabs are non opaque blocks, so you cannot put blocks which are dependent on a solid block. This should be a minor annoyance.EmanP 18:19, 14 June 2012 (UTC)
- I disagree completely. This seems like more of an oversight than intention. Why are double slab blocks solid while Upper slabs and upside-down stairs are not? Both of these blocks are flush with all other blocks and should have the ability to have these items placed on them. The only reason they are transparent is for lighting, and even still lighting is buggy with them. This needs to be fixed for the sake of consistency. --CaMoreno3 18:28, 14 June 2012 (UTC)
- Making these blocks solid would, as far as I know, make them act different in regards to redstone, in both good and bad ways. Redstonehelper 21:10, 14 June 2012 (UTC)
- this is a bug guys and dinnerbone allready tweeted me he would fix it in one of the upcoming snapshots so Eman please no unnecisary discussions.--League 18:31, 14 June 2012 (UTC)
- Can you link that tweet? Redstonehelper 21:10, 14 June 2012 (UTC)
[X] Tripwires on the side of connected hooks still trigger those hooks. IMG. -- Mustek 15:07, 14 June 2012 (UTC)
[X] Can't plant mushrooms at night -- Mustek 15:11, 14 June 2012 (UTC)
[X] Blocks broken below string causes the string to break(still), only works if string below string is broken -- Queegey 16:26, 14 June 2012 (UTC)
[X] This piston setup doesn't move the player. Example -- Mustek 15:23, 14 June 2012 (UTC)
- Pistons at head level don't move the player either. -- Mustek 15:24, 14 June 2012 (UTC)
[A] You can still walk off an Ender Portal Frame if you hold shift. Only the idiots can notice an idiot. 18:51, 14 June 2012 (UTC)
[A!] When collecting Mushroom blocks with Silk Touch it will not preserve the damage value. TorchicBlaziken 23:49, 2 June 2012 (UTC)
- Confirmed as still not working --Nebetsu 23:20, 14 June 2012 (UTC)
Annoyances
[A] Hooks make randomly blocks updates.
Fixed/Skipped
Items
Bugs
[X] Maps other than map_0 don't appear to save data correctly. – Unsigned comment added by 71.233.111.146 (talk). Sign comments with ~~~~
Annoyances
Fixed/Skipped
World Generator
Bugs
[X] Just like abandoned mineshafts were before the floors were implemented, strongholds generate weirdly when they cross a ravine. The seed -623160645725253637 is a good example of this with a stronghold in a hole close to spawn which crosses an underground ravine. TorchicBlaziken 22:00, 4 May 2012 (UTC)
Annoyances
Fixed/Skipped
Mobs/NPCs/Animals
Bugs
[X] in all gamemodes mobs are much less persisten. the new zombie ai is allmost completely gone. a zombie was chasing me so I ran to my 4x4 house. instead of walking around my house and destroying my door. he just stopped. waited for a second and walked away. (this happened in survival mode) --League 20:01, 14 June 2012 (UTC)
[X] mobs often glitch trough 1 blocks which have 1 block of air beneath them. I build a dirt platform directly on top of the ocean with npc's and cows on it and they glitch every now and then trough the floor. not completely, just about half of the npc's body--League 18:34, 14 June 2012 (UTC)
[X] When a creeper explodes while standing on snow, it only deals 1/2 to 1 heart damage to the player. DetachableMonkey
- Seems like it counts snow as a full block between itself and the player. -- Mustek 15:16, 14 June 2012 (UTC)
- It could be an unintended feature, the snow softens the landing, and creates a vacuum that ruins the explosion -- EmanP 18:14, 14 June 2012 (UTC)
- There's nothing that would create a vacuum, and the landing isn't the main source of explosive damage. This is clearly a bug.184.166.122.245 21:19, 14 June 2012 (UTC)
[X] When a huge(x>30) amount of minecart is driving, in an area of 10X10 then nonplayable character, no matter if pet or monster or whatever, gets vacuumated into a cart. KellOggz 16:04, 14 June 2012 (UTC)
Annoyances
[A!] Cows have a tendency to weird out, ignoring some collision. (Falling threw blocks with pressure plates, and going inside walls) They also seem to walk around and then suddenly move back to there previous location. This may work with other mobs (untested) – Unsigned comment added by 90.200.49.167 (talk). Sign comments with ~~~~
- This is a very old bug with mobs that used to only be in multiplayer. It's in singleplayer too now because of the merging.184.166.122.245 21:19, 14 June 2012 (UTC)
[A] Sometimes slimes seem to fall through the ground. They reappear seconds later.
Fixed/Skipped
Graphical/Lighting
Bugs
[X] Upside-down slabs with blocks on them still have incorrect lighting. (example) - -- Mustek 14:44, 14 June 2012 (UTC)
[X] Nether portal animation starts when arriving in the nether, yet it doesn't send you back until you leave & enter again. -- Mustek 14:59, 14 June 2012 (UTC)
[X] Strange, moonlight lighting of the Nether's upper bedrock layer. --IntKecsk 16:19, 14 June 2012 (UTC)
Patchy lighting in the Nether
-its not just bedrock. i see this in feilds of sousand and netherrack all the time.
[X] Hitting some mobs causes one section of their texture to turn white (while the red "pain" effect occurs). On cows, pigs, ocelots, zombies, creepers and squid it is the left side of their head. On the player, it is the inside of the right arm. Cannot reproduce on skeletons, sheep or spiders, but it also seems to stop happening sometimes. --Darkinnit 20:59, 14 June 2012 (UTC)
Annoyances
[A] Mobs and players appear ahead of moving vehicles while riding in them. [1] -- Mustek 14:47, 14 June 2012 (UTC)
Fixed/Skipped
Sounds
Bugs
[X] the normal nether portal sound is fixed. the one you hear when you are near the nether portal. but there is still 1 sound missing. it's the sound you heard when the screen said: entering the nether. for clarit, here is the sound I mean --League 18:35, 14 June 2012 (UTC)
[X] when you are 5 blocks away from noteblocks you can't hear them anymore. this wasn't in 1.2.5. this is very frustrating since making a song with noteblocks isn't possible anymore because after 6 blocks the sound is gone.--League 18:38, 14 June 2012 (UTC)
[X] While most of the missing sounds are fixed, there is still no rain sound in extreme hills biome. --Kumasasa 20:00, 14 June 2012 (UTC)
Annoyances
[A] Can't hear tnt if it's more than 16 blocks away. -- Mustek 14:51, 14 June 2012 (UTC)
Fixed/Skipped
Menus
Bugs
[X] when you rename a world, you play that world or another world. when you click save and quit and go to singleplayer worlds again. the world will have it's original name again. very frustrating when you have like 4 world's called new world or just world.--League 18:49, 14 June 2012 (UTC)
[X] World entries in the world selection menu show not the current game mode, but the game mode selected when the world was created. (Game mode was changed via /gamemode) --IntKecsk 15:51, 14 June 2012 (UTC)
- I think this is intended to be so, since using /gamemode only changes the players mode, but not the worlds'. Same on SMP, if you change 1 person to creative, the world will still be Survival. To change it "permanently" use /defaultgamemode. --MegaCamu 17:12, 14 June 2012 (UTC)
- that has a bug too. when you do defaultgamemode creative. then save the server and then shutdown the server, the next time you start the server the defaultgamemode will be survival again.--League 18:47, 14 June 2012 (UTC)
Annoyances
[A] When resizing the window while in the Create World menu in More World Options, wrong buttons are shown. Example --Pzyko 15:49, 14 June 2012 (UTC)
Fixed/Skipped
In-Game Interfaces/HUD
Bugs
[X] Since the world seed has been removed from the debug display and the /seed command requires cheats to be enabled, there is no way to view the world seed on non-cheats-enabled singleplayer worlds.--League 18:44, 14 June 2012 (UTC)
- Workaround: Either use a mod to turn cheats on, or get into the habit of choosing a seed of your own whenever you create a new world. [I use the Mojang splash texts.] --82.69.54.207 19:59, 14 June 2012 (UTC)
- just the fact that you know a solution to this problem doesn't mean it's not a bug. It should be fixed. but anyway. thanks for your temporary sugestion. --League 20:06, 14 June 2012 (UTC)
- In my eyes that is absolutely intended to prevent publishing the seed of non-cheat worlds. Think of upcoming adventure worlds where the seed should be kept more or less secret to prevent cheating. As long as we don't have a clear statement of the developers if that is intended, it is just an annoyance, not a bug. --Kumasasa 20:19, 14 June 2012 (UTC)
- You're looking at a very, very specific case, and assuming that Mojang chose it to take precedence over regular people who may not know that cheats on or off affects the seed display. Another possibility is someone doesn't think on world creation they wanted a fresh world or to share the world, but changed their mind later. Additionally, a save's seed is findable with resources such as the slime finder, making it trivial to find out a "secret" seed. Also, we can say something's a bug without developer statements. Upgraded to bug.184.166.122.245 21:28, 14 June 2012 (UTC)
Annoyances
[A] It takes a few seconds until a villager shows its swirls and new trade option. -- Mustek 14:54, 14 June 2012 (UTC)
- Vote to downgrade to minor annoyance. I do not believe this is more intrusive than a minor bug. Classifying bugs --CaMoreno3 15:48, 14 June 2012 (UTC)
- I agree. --83.38.243.162 15:56, 14 June 2012 (UTC)
- Downgraded. --82.69.54.207 19:56, 14 June 2012 (UTC)
[A] When trading with villagers, if you access a villager's second or third trade and put in items from a past trade that are not required in the current trade, you can still trade for the item that corresponds with the trading item you put in. – Unsigned comment added by 66.168.67.189 (talk). Sign comments with ~~~~
- Not a bug. This is intended, see comment from Jeb in Known_bugs/Version_12w23b. Vote for removal. --Kumasasa 18:10, 14 June 2012 (UTC)
- It's listed as an annoyance, so I deny that motion.
[A] The /publish command has no description (even when doing /help publish).
- Downgraded to annoyance. The /publish command is still very new and experimental. As Jens said on Mojang.com, "This is still very much work in progress...Also, the “/publish” command is temporary..." I'm sure in 1.3 this feature will have a much more user-friendly GUI. --CaMoreno3 15:48, 14 June 2012 (UTC)
[A] there is no way to turn publish of.--League 18:41, 14 June 2012 (UTC)
[A] When you are writing a book and notice that a few lines back you made an error, you need to delete everything in order to undo the error.--League 18:41, 14 June 2012 (UTC)
[A] Active potion effects are not shown in the Creative mode inventory. Redstonehelper 21:05, 14 June 2012 (UTC)
Fixed/Skipped
Language/Text Files
Bugs
[X] [SP] Issuing "/kill" in singleplayer creative throws the message "<Player> fell out of the world" in current selected language and "Ouch. That look (sic!) like it hurt." regardless of the selected language in English. --Kumasasa 21:13, 14 June 2012 (UTC)
[X] [MP] Death- and other messages are always in English regardles of the selected language. --Kumasasa 21:21, 14 June 2012 (UTC)