---- Minecraft Crash Report ----
// My bad.

Time: 11/5/12 5:53 PM
Description: Exception in server tick loop

java.lang.IllegalStateException: Entity is already tracked!
	at hz.a(SourceFile:67)
	at hz.a(SourceFile:56)
	at ia.a(SourceFile:24)
	at xe.a(SourceFile:786)
	at ie.a(SourceFile:553)
	at xe.d(SourceFile:778)
	at ge.a(SourceFile:355)
	at lb.b(SourceFile:1442)
	at lb.y(SourceFile:297)
	at lb.j_(SourceFile:262)
	at lj.j_(SourceFile:72)
	at xe.a(SourceFile:1218)
	at ie.a(SourceFile:424)
	at xe.g(SourceFile:1197)
	at xe.h(SourceFile:1122)
	at ie.h(SourceFile:352)
	at net.minecraft.server.MinecraftServer.r(SourceFile:718)
	at net.minecraft.server.MinecraftServer.q(SourceFile:661)
	at bcb.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:595)
	at fp.run(SourceFile:818)

Relevant Details:
- Minecraft Version: 1.4.2
- Operating System: Windows 7 (amd64) version 6.1
- Java Version: 1.7.0_09, Oracle Corporation
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 514895520 bytes (491 MB) / 915210240 bytes (872 MB) up to 954466304 bytes (910 MB)
- JVM Flags: 2 total; -Xms512m -Xmx1024m
- AABB Pool Size: 1140 (63840 bytes; 0 MB) allocated, 1140 (63840 bytes; 0 MB) used
- Is Modded: Probably not
- Profiler Position: N/A (disabled)
- Vec3 Pool Size: 112 (6272 bytes; 0 MB) allocated, 112 (6272 bytes; 0 MB) used
- Player Count: 1 / 8; [ih['dirkmanlee4'/3656, l='NEW Flat Creative', x=-26.00, y=77.50, z=99.00]]
- World NEW Flat Creative Entities: 0 total; []
- World NEW Flat Creative Players: 0 total; []
- World NEW Flat Creative Chunk Stats: ServerChunkCache: 0 Drop: 0
- Type: Integrated Server