When I am building something, like a Command Block Invention, Minecraft stops collecting data at a random point. I don't know it until I am Finished, go out of Minecraft, come back into my world and see that all I built was gone and only some was there that I built at the start. I figured out right now that it stops collecting data(Like placed blocks, written Commands etc) when the placing block sound doesn't "play".
Please fix this, it is really annoying building something and its not there when I come back
Related issues
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kumasasa
migrated
[17:13:42 INFO]: Minecraft Launcher 1.4.4 (through bootstrap 5) started on windows...
[17:13:42 INFO]: Current time is May 21, 2014 5:13:42 PM
[17:13:42 INFO]: System.getProperty('os.name') == 'Windows 7'
[17:13:42 INFO]: System.getProperty('os.version') == '6.1'
[17:13:42 INFO]: System.getProperty('os.arch') == 'x86'
[17:13:42 INFO]: System.getProperty('java.version') == '1.7.0_51'
[17:13:42 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[17:13:42 INFO]: System.getProperty('sun.arch.data.model') == '32'
[17:13:42 INFO]: JFX has been detected & successfully loaded
[17:13:43 INFO]: Refreshing local version list...
[17:13:44 INFO]: Refreshing remote version list...
[17:14:08 ERROR]: Unexpected exception refreshing version list
javax.net.ssl.SSLException: Received close_notify during handshake
at sun.security.ssl.Alerts.getSSLException(Unknown Source) ~[?:1.7.0_51]
at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source) ~[?:1.7.0_51]
at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source) ~[?:1.7.0_51]
at sun.security.ssl.SSLSocketImpl.recvAlert(Unknown Source) ~[?:1.7.0_51]
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) ~[?:1.7.0_51]
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source) ~[?:1.7.0_51]
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[?:1.7.0_51]
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[?:1.7.0_51]
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source) ~[?:1.7.0_51]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source) ~[?:1.7.0_51]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.7.0_51]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.7.0_51]
at com.mojang.launcher.Http.performGet(Http.java:54) ~[launcher.jar:?]
at net.minecraft.launcher.updater.RemoteVersionList.getContent(RemoteVersionList.java:27) ~[launcher.jar:?]
at net.minecraft.launcher.updater.VersionList.refreshVersions(VersionList.java:85) ~[launcher.jar:?]
at net.minecraft.launcher.updater.MinecraftVersionManager.refreshVersions(MinecraftVersionManager.java:60) ~[launcher.jar:?]
at net.minecraft.launcher.Launcher$1.run(Launcher.java:88) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_51]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_51]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_51]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_51]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_51]
[17:14:08 INFO]: Loaded 2 profile(s); selected 'MinecraftSpace77'
[17:14:08 INFO]: Refreshing auth...
[17:14:08 INFO]: Logging in with access token
[17:14:22 INFO]: Getting syncinfo for selected version
[17:14:22 INFO]: Queueing library & version downloads
[17:14:22 INFO]: Download job 'Version & Libraries' started (16 threads, 28 files)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.5.2\vecmath-1.5.2.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\lwjgl-platform-2.9.1-natives-windows.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.2.1\commons-lang3-3.2.1.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.13\authlib-1.5.13.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.15.Final\netty-all-4.0.15.Final.jar for job 'Version & Libraries'... (try 0)
[17:14:22 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-32.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Download job 'Resources' skipped as there are no files to download
[17:14:33 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-32.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.15.Final\netty-all-4.0.15.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\6.5\twitch-platform-6.5-natives-windows-32.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\lwjgl-platform-2.9.1-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.2.1\commons-lang3-3.2.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\16.0\guava-16.0.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.5.2\vecmath-1.5.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.13\authlib-1.5.13.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\versions\14w20b\14w20b.jar for job 'Version & Libraries'... (try 0)
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\6.5\twitch-platform-6.5-natives-windows-32.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:33 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\16.0\guava-16.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[17:14:34 INFO]: Finished downloading C:\Users\User\AppData\Roaming\.minecraft\versions\14w20b\14w20b.jar for job 'Version & Libraries': Used own copy as it matched etag
[17:14:34 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:12.863)
[17:14:34 INFO]: Launching game
migrated
[17:14:34 INFO]: Unpacking natives to C:\Users\User\AppData\Roaming\.minecraft\versions\14w20b\14w20b-natives-28142905396504
[17:14:37 INFO]: Launching in C:\Users\User\AppData\Roaming\.minecraft
[17:14:37 INFO]: Half command: C:\Program Files\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Djava.library.path=C:\Users\User\AppData\Roaming\.minecraft\versions\14w20b\14w20b-natives-28142905396504 -cp C:\Users\User\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.5.2\vecmath-1.5.2.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.15.Final\netty-all-4.0.15.Final.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\16.0\guava-16.0.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.2.1\commons-lang3-3.2.1.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.13\authlib-1.5.13.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar;C:\Users\User\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar;C:\Users\User\AppData\Roaming\.minecraft\versions\14w20b\14w20b.jar net.minecraft.client.main.Main
[17:14:37 INFO]: Looking for orphaned versions to clean up...
[17:14:37 FATAL]: Fatal error launching game. Report this to http://bugs.mojang.com please!
java.io.FileNotFoundException: File 'C:\Users\User\AppData\Roaming\.minecraft\assets\indexes\legacy.json' does not exist
at org.apache.commons.io.FileUtils.openInputStream(FileUtils.java:299) ~[launcher.jar:?]
at org.apache.commons.io.FileUtils.readFileToString(FileUtils.java:1711) ~[launcher.jar:?]
at net.minecraft.launcher.Launcher.cleanupOrphanedAssets(Launcher.java:186) ~[launcher.jar:?]
at net.minecraft.launcher.Launcher.performCleanups(Launcher.java:421) ~[launcher.jar:?]
at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:217) ~[launcher.jar:?]
at com.mojang.launcher.game.runner.AbstractGameRunner.onDownloadJobFinished(AbstractGameRunner.java:177) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:122) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:86) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_51]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_51]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_51]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_51]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_51]
[17:14:38 INFO]: Client> [17:14:38] [main/INFO]: Setting user: MinecraftSpace77
[17:14:38 INFO]: Client> [17:14:38] [main/INFO]: (Session ID is token:0a57dc6dac904a2192d18c1ace13bf0d:0e9a185095644a01b2e9f55d1a61ba45)
[17:14:39 INFO]: Client> [17:14:39] [Client thread/INFO]: LWJGL Version: 2.9.1
[17:14:42 INFO]: Client> [17:14:42] [Client thread/INFO]: Reloading ResourceManager: Default, MyMusic
[17:14:42 INFO]: Client>
[17:14:42 INFO]: Client> Starting up SoundSystem...
[17:14:43 INFO]: Client> Initializing LWJGL OpenAL
[17:14:43 INFO]: Client> (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[17:14:43 INFO]: Client> OpenAL initialized.
[17:14:43 INFO]: Client>
[17:14:43 INFO]: Client> [17:14:43] [Sound Library Loader/INFO]: Sound engine started
[17:14:43 INFO]: Client> [17:14:43] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas
[17:14:44 INFO]: Client> [17:14:44] [Client thread/INFO]: Created: 256x256 textures/items-atlas
[17:14:49 INFO]: Client> [17:14:49] [MCO Availability Checker #1/ERROR]: Couldn't connect to Realms
[17:14:49 INFO]: Client> coi:
[17:14:49 INFO]: Client> at cnn.a(SourceFile:251) ~[14w20b.jar:?]
[17:14:49 INFO]: Client> at cnn.b(SourceFile:86) ~[14w20b.jar:?]
[17:14:49 INFO]: Client> at boc.run(SourceFile:206) [14w20b.jar:?]
[17:15:00 INFO]: Client> [17:15:00] [Server thread/INFO]: Starting integrated minecraft server version 14w20b
[17:15:00 INFO]: Client> [17:15:00] [Server thread/INFO]: Generating keypair
[17:15:01 INFO]: Client> [17:15:01] [Server thread/INFO]: Preparing start region for level 0
After having that issue:
Please attach the complete output of the "Development console" which can be found on the second tab of the launcher.
If the launcher closes after game start, please edit your profile and select "Launcher visibility" then, "Keep the launcher open".