---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 12/12/14 5:24 PM
Description: Exception ticking world

java.lang.NullPointerException: Exception ticking world
at bmt.a(SourceFile:40)
at bmk.a(SourceFile:93)
at bgo.a(SourceFile:152)
at qt.a(SourceFile:174)
at bff.a(SourceFile:863)
at qt.c(SourceFile:104)
at qt.d(SourceFile:116)
at aqr.a(SourceFile:276)
at aqr.f(SourceFile:272)
at aqr.p(SourceFile:657)
at awk.b(SourceFile:66)
at ato.a(SourceFile:445)
at qu.h(SourceFile:383)
at qu.c(SourceFile:202)
at net.minecraft.server.MinecraftServer.A(SourceFile:600)
at net.minecraft.server.MinecraftServer.z(SourceFile:532)
at cyk.z(SourceFile:155)
at net.minecraft.server.MinecraftServer.run(SourceFile:448)
at java.lang.Thread.run(Thread.java:745)

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

– Head –
Stacktrace:
at bmt.a(SourceFile:40)
at bmk.a(SourceFile:93)
at bgo.a(SourceFile:152)
at qt.a(SourceFile:174)
at bff.a(SourceFile:863)
at qt.c(SourceFile:104)
at qt.d(SourceFile:116)
at aqr.a(SourceFile:276)
at aqr.f(SourceFile:272)
at aqr.p(SourceFile:657)
at awk.b(SourceFile:66)
at ato.a(SourceFile:445)
at qu.h(SourceFile:383)
at qu.c(SourceFile:202)

– Affected level –
Details:
Level name: Build World
All players: 1 total; [qx['gvez007'/95, l='Build World', x=-371.67, y=5.00, z=866.71]]
Chunk stats: ServerChunkCache: 533 Drop: 0
Level seed: 7734363642820177791
Level generator: ID 01 - flat, ver 0. Features enabled: true
Level generator options:
Level spawn location: -340.00,4.00,844.00 - World: (-340,4,844), Chunk: (at 12,0,12 in -22,52; contains blocks -352,0,832 to -337,255,847), Region: (-1,1; contains chunks -32,32 to -1,63, blocks -512,0,512 to -1,255,1023)
Level time: 163897 game time, 7500 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 51986 (now: false), thunder time: 89838 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.A(SourceFile:600)
at net.minecraft.server.MinecraftServer.z(SourceFile:532)
at cyk.z(SourceFile:155)
at net.minecraft.server.MinecraftServer.run(SourceFile:448)
at java.lang.Thread.run(Thread.java:745)

– System Details –
Details:
Minecraft Version: 1.8.1
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 173188640 bytes (165 MB) / 298831872 bytes (284 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Profiler Position: N/A (disabled)
Player Count: 1 / 8; [qx['gvez007'/95, l='Build World', x=-371.67, y=5.00, z=866.71]]
Type: Integrated Server (map_client.txt)
Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

Now, about those cupcakes!

I seriously have no idea why this is happening because I could set it to 10 chunks just fine before.