---- Minecraft Crash Report ----
// Why is it breaking :(

Time: 21/12/12 10:53 AM
Description: Exception while ticking a block

java.lang.IllegalStateException: Entity is already tracked!
	at ii.a(SourceFile:69)
	at ii.a(SourceFile:56)
	at ij.a(SourceFile:24)
	at yc.a(SourceFile:842)
	at in.a(SourceFile:580)
	at yc.d(SourceFile:834)
	at akn.l(SourceFile:55)
	at akn.b(SourceFile:35)
	at in.a(SourceFile:388)
	at in.b(SourceFile:136)
	at net.minecraft.server.MinecraftServer.r(SourceFile:736)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at ii.a(SourceFile:69)
	at ii.a(SourceFile:56)
	at ij.a(SourceFile:24)
	at yc.a(SourceFile:842)
	at in.a(SourceFile:580)
	at yc.d(SourceFile:834)
	at akn.l(SourceFile:55)
	at akn.b(SourceFile:35)

-- Block being ticked --
Details:
	Block type: ID #13 (tile.gravel // akk)
	Block data value: 0 / 0x0 / 0b0000
	Block location: World: (103,55,97), Chunk: (at 7,3,1 in 6,6; contains blocks 96,0,96 to 111,255,111), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Stacktrace:
	at in.a(SourceFile:388)
	at in.b(SourceFile:136)

-- Affected level --
Details:
	Level name: Boingify
	All players: 1 total; [iq['depleater'/218, l='Boingify', x=201.35, y=69.00, z=249.67]]
	Chunk stats: ServerChunkCache: 625 Drop: 0
	Level seed: -3597841014017095496
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (200,64,256), Chunk: (at 8,4,0 in 12,16; contains blocks 192,0,256 to 207,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 264 game time, 264 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 17764 (now: false), thunder time: 98076 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.r(SourceFile:736)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)

-- System Details --
Details:
	Minecraft Version: 1.4.6
	Operating System: Linux (i386) version 3.1.0-1-686-pae
	Java Version: 1.6.0_26, Sun Microsystems Inc.
	Java VM Version: Java HotSpot(TM) Server VM (mixed mode), Sun Microsystems Inc.
	Memory: 303263680 bytes (289 MB) / 469106688 bytes (447 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -Xmx1024M -Xms512M
	AABB Pool Size: 5967 (334152 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1533 (85848 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 1 / 8; [iq['depleater'/218, l='Boingify', x=201.35, y=69.00, z=249.67]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.