Jack Ryan

I'm still able to play, but the game doesn't reflect the last minute or so of my previous save.

[09:43:49 INFO]: Launching game
[09:43:49 INFO]: Unpacking natives to C:\Users\Chris\AppData\Roaming\.minecraft\versions\1.8\1.8-natives-576301871759190
[09:43:50 INFO]: Launching in C:\Users\Chris\AppData\Roaming\.minecraft
[09:43:50 INFO]: Half command: C:\Program Files (x86)\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Djava.library.path=C:\Users\Chris\AppData\Roaming\.minecraft\versions\1.8\1.8-natives-576301871759190 -cp C:\Users\Chris\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.5.2\vecmath-1.5.2.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.15.Final\netty-all-4.0.15.Final.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\17.0\guava-17.0.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.17\authlib-1.5.17.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.5.5\realms-1.5.5.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar;C:\Users\Chris\AppData\Roaming\.minecraft\versions\1.8\1.8.jar net.minecraft.client.main.Main
[09:43:50 INFO]: Looking for orphaned versions to clean up...
[09:43:51 FATAL]: Fatal error launching game. Report this to http://bugs.mojang.com please!
java.io.FileNotFoundException: File 'C:\Users\Chris\AppData\Roaming\.minecraft\assets\indexes\legacy.json' does not exist

I'm having this problem, too. Lava buckets I had placed into hoppers and furnaces just before saving and quitting are gone. I started seeing this with 1.8

[09:43:57] [Client thread/INFO]: Setting user: SwordsmanRyan
[09:43:57] [Client thread/INFO]: (Session ID is token:d260033a354649ceb5e610b423b83722:7ab8ad56fff04e6ca92a655d83d7e87f)
[09:44:05] [Client thread/INFO]: LWJGL Version: 2.9.1
[09:44:09] [Client thread/INFO]: Reloading ResourceManager: Default
[09:44:10] [Sound Library Loader/INFO]: Starting up SoundSystem...
[09:44:10] [Client thread/WARN]: File minecraft:sounds/mob/ghast/fireball.ogg does not exist, cannot add it to event minecraft:item.fireCharge.use
[09:44:10] [Thread-6/INFO]: Initializing LWJGL OpenAL
[09:44:10] [Thread-6/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[09:44:11] [Thread-6/INFO]: OpenAL initialized.
[09:44:11] [Sound Library Loader/INFO]: Sound engine started
[09:44:20] [Client thread/INFO]: Created: 512x512 textures-atlas
[09:45:28] [Server thread/INFO]: Starting integrated minecraft server version 1.8
[09:45:28] [Server thread/INFO]: Generating keypair
[09:45:30] [Server thread/INFO]: Preparing start region for level 0
[09:45:31] [Server thread/INFO]: Preparing spawn area: 1%
[09:45:32] [Server thread/INFO]: Preparing spawn area: 13%
[09:45:33] [Server thread/INFO]: Preparing spawn area: 27%
[09:45:34] [Server thread/INFO]: Preparing spawn area: 42%
[09:45:35] [Server thread/INFO]: Preparing spawn area: 54%
[09:45:36] [Server thread/INFO]: Preparing spawn area: 69%
[09:45:37] [Server thread/INFO]: Preparing spawn area: 82%
[09:45:38] [Server thread/INFO]: Preparing spawn area: 95%
[09:45:38] [Server thread/INFO]: Changing view distance to 12, from 10
[09:45:40] [Server thread/INFO]: SwordsmanRyan[local:E:6b0ce0b7] logged in with entity id 217 at (-183.3540934274215, 74.0, 201.1436446118105)
[09:45:40] [Server thread/INFO]: SwordsmanRyan joined the game
[09:45:48] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 7979ms behind, skipping 159 tick(s)
[09:46:12] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 16224ms behind, skipping 324 tick(s)
[09:46:17] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4807ms behind, skipping 96 tick(s)
[09:46:43] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 15359ms behind, skipping 307 tick(s)
[09:46:48] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4780ms behind, skipping 95 tick(s)
[09:47:22] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 20094ms behind, skipping 401 tick(s)
[09:47:28] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 6008ms behind, skipping 120 tick(s)
[09:47:51] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 8765ms behind, skipping 175 tick(s)
[09:48:07] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 8291ms behind, skipping 165 tick(s)
[09:48:28] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 9715ms behind, skipping 194 tick(s)
[09:48:48] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 9926ms behind, skipping 198 tick(s)
[09:49:02] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 6604ms behind, skipping 132 tick(s)
[09:49:04] [Chunk Batcher 1/WARN]: Needed to grow BufferBuilder buffer: Old size 524288 bytes, new size 2621440 bytes.

Same.