MC Crash Bug [1.6.2]

I posted a previous report about this, about the random crashes, but of course you said it was invalid because it was modded, but that doesnt matter, it happens in vanilla and modded clients, as shown. You asked me to replicate it in Vanilla, so here it is. Random crash, has nothing to do with the "Commands Shown" crash. What happens is, you are playing, and all of the sudden your minecraft closes. Nothing else happens, it just randomly closes and creates this report.

---- Minecraft Crash Report ----
// Why did you do that?

Time: 7/12/13 4:04 PM
Description: Exception in world tick

java.lang.IllegalStateException: Player is either on another team or not on any team. Cannot remove from team 'hbr8'.
	at atg.b(SourceFile:202)
	at bct.a(SourceFile:1164)
	at ft.a(SourceFile:99)
	at cn.b(SourceFile:354)
	at bct.e(SourceFile:98)
	at bda.b(SourceFile:60)
	at ats.k(SourceFile:1386)
	at ats.S(SourceFile:663)
	at ats.d(SourceFile:619)
	at net.minecraft.client.main.Main.main(SourceFile:101)


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

-- Head --
Stacktrace:
	at atg.b(SourceFile:202)
	at bct.a(SourceFile:1164)
	at ft.a(SourceFile:99)
	at cn.b(SourceFile:354)
	at bct.e(SourceFile:98)

-- Affected level --
Details:
	Level name: MpServer
	All players: 6 total; [bdf['Kamren35'/7408377, l='MpServer', x=45.42, y=88.62, z=-392.20], bev['Verbooom'/6532790, l='MpServer', x=69.25, y=87.00, z=-417.44], bev['123derekb'/6986115, l='MpServer', x=72.94, y=88.00, z=-399.78], bev['deathtozombie'/7495976, l='MpServer', x=71.44, y=87.02, z=-413.00], bev['AM_DBS_SURFER'/7331804, l='MpServer', x=24.69, y=87.00, z=-374.44], bev['crazyclown00'/6199743, l='MpServer', x=78.31, y=86.52, z=-415.66]]
	Chunk stats: MultiplayerChunkCache: 441
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-694,78,-482), Chunk: (at 10,4,14 in -44,-31; contains blocks -704,0,-496 to -689,255,-481), Region: (-2,-1; contains chunks -64,-32 to -33,-1, blocks -1024,0,-512 to -513,255,-1)
	Level time: 171543153 game time, 173100591 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: 37 total; [bdf['Kamren35'/7408377, l='MpServer', x=45.42, y=88.62, z=-392.20], rp['Chicken'/7556799, l='MpServer', x=72.66, y=88.00, z=-391.44], bev['AM_DBS_SURFER'/7331804, l='MpServer', x=24.69, y=87.00, z=-374.44], bev['imagroundhog'/6878209, l='MpServer', x=-223.06, y=101.00, z=-524.97], bev['XxuninvitedxX'/7342294, l='MpServer', x=-227.69, y=101.50, z=-535.69], bev['logan123576'/6829807, l='MpServer', x=33.22, y=87.00, z=-445.44], bev['shawdowgaming'/6787280, l='MpServer', x=68.41, y=87.00, z=-440.22], bev['coyote09'/5301546, l='MpServer', x=-570.25, y=86.00, z=-209.26], bev['shawdowgaming'/6787280, l='MpServer', x=-574.28, y=86.00, z=-210.88], bev['Verbooom'/6532790, l='MpServer', x=69.25, y=87.00, z=-417.44], bev['funnywaffles123'/7459500, l='MpServer', x=43.06, y=87.00, z=-428.53], bev['Left4dead04'/7336515, l='MpServer', x=-522.51, y=92.41, z=-198.09], rp['Chicken'/7563113, l='MpServer', x=75.53, y=88.00, z=-388.53], bev['logan123576'/6829807, l='MpServer', x=-574.66, y=86.00, z=-209.75], sr['item.tile.sandStone.default'/7557375, l='MpServer', x=73.97, y=86.63, z=-414.66], bev['funnywaffles123'/7459500, l='MpServer', x=-573.63, y=86.00, z=-209.50], bev['Penguinhop972'/7235297, l='MpServer', x=-182.31, y=105.09, z=-569.69], bev['deathtozombie'/7495976, l='MpServer', x=71.44, y=87.02, z=-413.00], rp['§r§a????????     '/7555805, l='MpServer', x=72.16, y=88.00, z=-400.82], bev['XxuninvitedxX'/7342294, l='MpServer', x=-228.69, y=101.50, z=-534.69], bev['crazyclown00'/6199743, l='MpServer', x=47.78, y=87.96, z=-447.34], bev['crazyclown00'/6199743, l='MpServer', x=78.31, y=86.52, z=-415.66], bev['123derekb'/6986115, l='MpServer', x=72.94, y=88.00, z=-399.78], rp['Chicken'/7568576, l='MpServer', x=75.03, y=88.00, z=-390.41], bev['crazyclown00'/6199743, l='MpServer', x=78.31, y=86.52, z=-415.66], rp['Chicken'/7568577, l='MpServer', x=75.72, y=88.00, z=-393.28], bev['deathtozombie'/6824655, l='MpServer', x=69.28, y=87.00, z=-416.41], bev['TheGoodShxt'/6061715, l='MpServer', x=-209.91, y=101.75, z=-523.75], bev['supchuck663'/5246981, l='MpServer', x=39.84, y=87.00, z=-438.69], bev['Verbooom'/6532790, l='MpServer', x=69.25, y=87.00, z=-417.44], bev['deathtozombie'/7495976, l='MpServer', x=71.44, y=87.02, z=-413.00], bev['AM_DBS_SURFER'/7331804, l='MpServer', x=24.69, y=87.00, z=-374.44], bev['crazyclown00'/6199743, l='MpServer', x=53.14, y=59.00, z=-470.50], bev['123derekb'/6986115, l='MpServer', x=72.94, y=88.00, z=-399.78], bev['XxuninvitedxX'/7342294, l='MpServer', x=-217.23, y=101.00, z=-530.04], bev['AM_DBS_SURFER'/7331804, l='MpServer', x=52.38, y=87.00, z=-355.38], bev['imagroundhog'/6878209, l='MpServer', x=-225.78, y=101.00, z=-527.22]]
	Retry entities: 0 total; []
	Server brand:  > B u n g e e C o r d   ( g i t - B u n g e e C o r d - P r o x y - 1 . 6 . 1 - S N A P S H O T - " 9 a d c b 0 5 " - 5 8 7 )
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bda.a(SourceFile:284)
	at ats.k(SourceFile:1393)
	at ats.S(SourceFile:663)
	at ats.d(SourceFile:619)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- Affected level --
Details:
	Level name: MpServer
	All players: 6 total; [bdf['Kamren35'/7408377, l='MpServer', x=45.42, y=88.62, z=-392.20], bev['Verbooom'/6532790, l='MpServer', x=69.25, y=87.00, z=-417.44], bev['123derekb'/6986115, l='MpServer', x=72.94, y=88.00, z=-399.78], bev['deathtozombie'/7495976, l='MpServer', x=71.44, y=87.02, z=-413.00], bev['AM_DBS_SURFER'/7331804, l='MpServer', x=24.69, y=87.00, z=-374.44], bev['crazyclown00'/6199743, l='MpServer', x=78.31, y=86.52, z=-415.66]]
	Chunk stats: MultiplayerChunkCache: 441
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-694,78,-482), Chunk: (at 10,4,14 in -44,-31; contains blocks -704,0,-496 to -689,255,-481), Region: (-2,-1; contains chunks -64,-32 to -33,-1, blocks -1024,0,-512 to -513,255,-1)
	Level time: 171543153 game time, 173100591 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: 37 total; [bdf['Kamren35'/7408377, l='MpServer', x=45.42, y=88.62, z=-392.20], rp['Chicken'/7556799, l='MpServer', x=72.66, y=88.00, z=-391.44], bev['AM_DBS_SURFER'/7331804, l='MpServer', x=24.69, y=87.00, z=-374.44], bev['imagroundhog'/6878209, l='MpServer', x=-223.06, y=101.00, z=-524.97], bev['XxuninvitedxX'/7342294, l='MpServer', x=-227.69, y=101.50, z=-535.69], bev['logan123576'/6829807, l='MpServer', x=33.22, y=87.00, z=-445.44], bev['shawdowgaming'/6787280, l='MpServer', x=68.41, y=87.00, z=-440.22], bev['coyote09'/5301546, l='MpServer', x=-570.25, y=86.00, z=-209.26], bev['shawdowgaming'/6787280, l='MpServer', x=-574.28, y=86.00, z=-210.88], bev['Verbooom'/6532790, l='MpServer', x=69.25, y=87.00, z=-417.44], bev['funnywaffles123'/7459500, l='MpServer', x=43.06, y=87.00, z=-428.53], bev['Left4dead04'/7336515, l='MpServer', x=-522.51, y=92.41, z=-198.09], rp['Chicken'/7563113, l='MpServer', x=75.53, y=88.00, z=-388.53], bev['logan123576'/6829807, l='MpServer', x=-574.66, y=86.00, z=-209.75], sr['item.tile.sandStone.default'/7557375, l='MpServer', x=73.97, y=86.63, z=-414.66], bev['funnywaffles123'/7459500, l='MpServer', x=-573.63, y=86.00, z=-209.50], bev['Penguinhop972'/7235297, l='MpServer', x=-182.31, y=105.09, z=-569.69], bev['deathtozombie'/7495976, l='MpServer', x=71.44, y=87.02, z=-413.00], rp['§r§a????????     '/7555805, l='MpServer', x=72.16, y=88.00, z=-400.82], bev['XxuninvitedxX'/7342294, l='MpServer', x=-228.69, y=101.50, z=-534.69], bev['crazyclown00'/6199743, l='MpServer', x=47.78, y=87.96, z=-447.34], bev['crazyclown00'/6199743, l='MpServer', x=78.31, y=86.52, z=-415.66], bev['123derekb'/6986115, l='MpServer', x=72.94, y=88.00, z=-399.78], rp['Chicken'/7568576, l='MpServer', x=75.03, y=88.00, z=-390.41], bev['crazyclown00'/6199743, l='MpServer', x=78.31, y=86.52, z=-415.66], rp['Chicken'/7568577, l='MpServer', x=75.72, y=88.00, z=-393.28], bev['deathtozombie'/6824655, l='MpServer', x=69.28, y=87.00, z=-416.41], bev['TheGoodShxt'/6061715, l='MpServer', x=-209.91, y=101.75, z=-523.75], bev['supchuck663'/5246981, l='MpServer', x=39.84, y=87.00, z=-438.69], bev['Verbooom'/6532790, l='MpServer', x=69.25, y=87.00, z=-417.44], bev['deathtozombie'/7495976, l='MpServer', x=71.44, y=87.02, z=-413.00], bev['AM_DBS_SURFER'/7331804, l='MpServer', x=24.69, y=87.00, z=-374.44], bev['crazyclown00'/6199743, l='MpServer', x=53.14, y=59.00, z=-470.50], bev['123derekb'/6986115, l='MpServer', x=72.94, y=88.00, z=-399.78], bev['XxuninvitedxX'/7342294, l='MpServer', x=-217.23, y=101.00, z=-530.04], bev['AM_DBS_SURFER'/7331804, l='MpServer', x=52.38, y=87.00, z=-355.38], bev['imagroundhog'/6878209, l='MpServer', x=-225.78, y=101.00, z=-527.22]]
	Retry entities: 0 total; []
	Server brand:  > B u n g e e C o r d   ( g i t - B u n g e e C o r d - P r o x y - 1 . 6 . 1 - S N A P S H O T - " 9 a d c b 0 5 " - 5 8 7 )
	Server type: Non-integrated multiplayer server

-- System Details --
Details:
	Minecraft Version: 1.6.2
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 299580952 bytes (285 MB) / 384172032 bytes (366 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 138 (7728 bytes; 0 MB) allocated, 100 (5600 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Launched Version: 1.6.2
	LWJGL: 2.9.0
	OpenGL: AMD Radeon HD 6550D GL version 4.2.12337 Compatibility Profile Context 13.101.0.0, ATI Technologies Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Pack: Faithful Edit.zip
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 166 (9296 bytes; 0 MB) allocated, 29 (1624 bytes; 0 MB) used