I tried to make a zoomed out map and the game crashed. The map was "unknown" too.

---- Minecraft Crash Report ----
// I feel sad now :(

Time: 2014-03-25 18:26
Description: Updating screen events

java.lang.NullPointerException: Updating screen events
	at ace.d(SourceFile:221)
	at aca.a(SourceFile:336)
	at zu.b(SourceFile:41)
	at zu.a(SourceFile:58)
	at yp.a(SourceFile:238)
	at bkf.a(SourceFile:308)
	at bdq.a(SourceFile:490)
	at bdq.a(SourceFile:318)
	at bco.d(SourceFile:232)
	at bco.k(SourceFile:211)
	at azl.p(SourceFile:1303)
	at azl.ah(SourceFile:757)
	at azl.f(SourceFile:711)
	at net.minecraft.client.main.Main.main(SourceFile:148)


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

-- Head --
Stacktrace:
	at ace.d(SourceFile:221)
	at aca.a(SourceFile:336)
	at zu.b(SourceFile:41)
	at zu.a(SourceFile:58)
	at yp.a(SourceFile:238)
	at bkf.a(SourceFile:308)
	at bdq.a(SourceFile:490)
	at bdq.a(SourceFile:318)
	at bco.d(SourceFile:232)
	at bco.k(SourceFile:211)

-- Affected screen --
Details:
	Screen name: bec

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bkl['mr4ffe'/35306, l='MpServer', x=32,23, y=89,62, z=282,69]]
	Chunk stats: MultiplayerChunkCache: 961, 961
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (24,64,252), Chunk: (at 8,4,12 in 1,15; contains blocks 16,0,240 to 31,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 626487 game time, 630037 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 12 total; [ww['Smygare'/38472, l='MpServer', x=56,50, y=12,00, z=249,44], vm['Får'/203, l='MpServer', x=34,53, y=69,00, z=262,81], ww['Smygare'/38475, l='MpServer', x=53,94, y=12,00, z=248,59], ve['Ko'/207, l='MpServer', x=67,25, y=69,00, z=291,41], vm['Får'/214, l='MpServer', x=74,66, y=83,00, z=323,50], bkl['mr4ffe'/35306, l='MpServer', x=32,23, y=89,62, z=282,69], vm['Får'/159, l='MpServer', x=10,22, y=63,00, z=236,50], xi['Skelett'/30128, l='MpServer', x=77,53, y=64,00, z=281,16], ww['Smygare'/37170, l='MpServer', x=10,97, y=76,00, z=329,50], rq['entity.ItemFrame.name'/38706, l='MpServer', x=33,50, y=89,50, z=277,06], bmk['rome45'/905, l='MpServer', x=31,66, y=66,47, z=233,47], vd['Höna'/125, l='MpServer', x=-12,53, y=68,00, z=246,38]]
	Retry entities: 0 total; []
	Server brand: CraftBukkit
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bkg.a(SourceFile:289)
	at azl.b(SourceFile:1947)
	at azl.f(SourceFile:720)
	at net.minecraft.client.main.Main.main(SourceFile:148)

-- System Details --
Details:
	Minecraft Version: 1.7.5
	Operating System: Windows 8.1 (amd64) version 6.3
	Java Version: 1.8.0, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 24171248 bytes (23 MB) / 237502464 bytes (226 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 1.7.5
	LWJGL: 2.9.1
	OpenGL: AMD Radeon HD 7800 Series GL version 4.3.12618 Compatibility Profile Context 13.251.0.0, ATI Technologies Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: Svenska (Sverige)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Anisotropic Filtering: On (16)