Ghost block

Dupe of MC-62166

I forced a crash report after I loaded the world. This is the report:

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

Time: 7/21/14 8:27 AM
Description: Manually triggered debug crash

java.lang.Throwable
at bqx.q(SourceFile:1549)
at bqx.aq(SourceFile:868)
at bqx.a(SourceFile:307)
at net.minecraft.client.main.Main.main(SourceFile:120)

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

– Head –
Stacktrace:
at cch.a(SourceFile:308)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [cgi['GlitchiePlaysMC'/134, l='MpServer', x=-230.56, y=7.00, z=-196.76]]
Chunk stats: MultiplayerChunkCache: 625, 625
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: -237.00,4.00,-194.00 - World: (-237,4,-194), Chunk: (at 3,0,14 in -15,-13; contains blocks -240,0,-208 to -225,255,-193), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Level time: 11866 game time, 11866 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: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 84 total; [abi['Horse'/12, l='MpServer', x=-310.84, y=4.00, z=-256.25], abh['Cow'/13, l='MpServer', x=-308.16, y=4.00, z=-267.16], abp['Pig'/15, l='MpServer', x=-307.44, y=4.00, z=-220.13], abg['Chicken'/17, l='MpServer', x=-307.31, y=4.00, z=-216.53], abi['Horse'/19, l='MpServer', x=-311.28, y=4.00, z=-211.00], aby['Sheep'/23, l='MpServer', x=-306.66, y=4.00, z=-199.22], abg['Chicken'/22, l='MpServer', x=-309.09, y=4.00, z=-211.69], abh['Cow'/25, l='MpServer', x=-302.13, y=4.00, z=-272.06], aby['Sheep'/24, l='MpServer', x=-310.91, y=4.00, z=-201.84], abh['Cow'/27, l='MpServer', x=-292.84, y=4.00, z=-266.44], abh['Cow'/26, l='MpServer', x=-290.75, y=4.00, z=-250.22], abg['Chicken'/29, l='MpServer', x=-296.56, y=4.00, z=-258.69], abg['Chicken'/28, l='MpServer', x=-301.41, y=4.00, z=-260.59], abg['Chicken'/31, l='MpServer', x=-291.97, y=4.00, z=-266.09], abh['Cow'/30, l='MpServer', x=-303.97, y=4.00, z=-269.97], abh['Cow'/34, l='MpServer', x=-286.72, y=4.00, z=-247.16], abg['Chicken'/32, l='MpServer', x=-301.38, y=4.00, z=-263.31], abh['Cow'/33, l='MpServer', x=-300.19, y=4.00, z=-257.94], abh['Cow'/38, l='MpServer', x=-294.38, y=4.00, z=-251.25], abp['Pig'/39, l='MpServer', x=-293.19, y=4.00, z=-239.84], abg['Chicken'/36, l='MpServer', x=-299.59, y=4.00, z=-250.31], abg['Chicken'/37, l='MpServer', x=-287.88, y=4.00, z=-246.28], abi['Horse'/42, l='MpServer', x=-292.25, y=4.00, z=-215.53], aby['Sheep'/43, l='MpServer', x=-294.34, y=4.00, z=-223.78], abg['Chicken'/40, l='MpServer', x=-298.38, y=4.00, z=-224.44], abg['Chicken'/41, l='MpServer', x=-297.59, y=4.00, z=-228.34], aby['Sheep'/46, l='MpServer', x=-300.00, y=4.00, z=-219.97], abg['Chicken'/47, l='MpServer', x=-294.72, y=4.00, z=-210.63], abi['Horse'/44, l='MpServer', x=-302.38, y=4.00, z=-222.84], abp['Pig'/45, l='MpServer', x=-300.97, y=4.00, z=-216.25], abi['Horse'/51, l='MpServer', x=-292.84, y=4.00, z=-121.66], aby['Sheep'/50, l='MpServer', x=-295.19, y=4.00, z=-153.91], abg['Chicken'/49, l='MpServer', x=-301.47, y=4.00, z=-210.34], abi['Horse'/48, l='MpServer', x=-297.84, y=4.00, z=-209.81], abi['Horse'/55, l='MpServer', x=-274.38, y=4.00, z=-140.19], aby['Sheep'/54, l='MpServer', x=-275.13, y=4.00, z=-144.97], abh['Cow'/53, l='MpServer', x=-284.13, y=4.00, z=-259.13], ada['item.tile.stone.stone'/58, l='MpServer', x=-234.28, y=4.00, z=-187.63], aby['Sheep'/57, l='MpServer', x=-278.63, y=4.00, z=-126.91], aby['Sheep'/56, l='MpServer', x=-287.00, y=4.00, z=-133.94], abg['Chicken'/68, l='MpServer', x=-197.41, y=4.00, z=-151.38], ada['item.tile.stone.stone'/69, l='MpServer', x=-192.34, y=4.00, z=-141.22], aby['Sheep'/70, l='MpServer', x=-200.88, y=4.00, z=-122.94], aby['Sheep'/71, l='MpServer', x=-201.84, y=4.00, z=-125.84], abg['Chicken'/78, l='MpServer', x=-187.47, y=4.00, z=-154.56], ada['item.tile.stone.stone'/79, l='MpServer', x=-190.53, y=4.00, z=-134.25], abg['Chicken'/72, l='MpServer', x=-203.56, y=4.00, z=-117.66], abg['Chicken'/73, l='MpServer', x=-187.69, y=4.00, z=-119.72], aby['Sheep'/74, l='MpServer', x=-195.00, y=4.00, z=-124.09], aby['Sheep'/85, l='MpServer', x=-163.38, y=4.00, z=-174.84], abg['Chicken'/84, l='MpServer', x=-181.63, y=4.00, z=-124.66], aby['Sheep'/87, l='MpServer', x=-167.13, y=4.00, z=-164.59], abh['Cow'/86, l='MpServer', x=-160.25, y=4.00, z=-165.75], aby['Sheep'/81, l='MpServer', x=-187.38, y=4.00, z=-131.94], abg['Chicken'/80, l='MpServer', x=-187.38, y=4.00, z=-122.41], abg['Chicken'/83, l='MpServer', x=-184.97, y=4.00, z=-125.56], abp['Pig'/93, l='MpServer', x=-165.88, y=4.00, z=-140.63], aby['Sheep'/92, l='MpServer', x=-162.25, y=4.00, z=-144.41], aby['Sheep'/95, l='MpServer', x=-162.44, y=4.00, z=-135.19], abg['Chicken'/94, l='MpServer', x=-163.44, y=4.00, z=-129.44], abh['Cow'/89, l='MpServer', x=-169.44, y=4.00, z=-158.28], aby['Sheep'/88, l='MpServer', x=-166.25, y=4.00, z=-166.91], abh['Cow'/91, l='MpServer', x=-163.28, y=4.00, z=-159.22], aby['Sheep'/90, l='MpServer', x=-160.03, y=4.00, z=-147.28], abp['Pig'/102, l='MpServer', x=-159.91, y=4.00, z=-163.53], abg['Chicken'/100, l='MpServer', x=-179.44, y=4.00, z=-116.69], aby['Sheep'/101, l='MpServer', x=-153.25, y=4.00, z=-178.88], abg['Chicken'/98, l='MpServer', x=-165.53, y=4.00, z=-125.41], abg['Chicken'/96, l='MpServer', x=-175.69, y=4.00, z=-134.38], abp['Pig'/110, l='MpServer', x=-156.25, y=4.00, z=-148.03], abp['Pig'/111, l='MpServer', x=-157.06, y=4.00, z=-152.94], aby['Sheep'/108, l='MpServer', x=-152.78, y=4.00, z=-149.50], abh['Cow'/107, l='MpServer', x=-154.19, y=4.00, z=-147.91], abp['Pig'/104, l='MpServer', x=-155.59, y=4.00, z=-150.22], abh['Cow'/105, l='MpServer', x=-154.38, y=4.00, z=-152.97], abp['Pig'/119, l='MpServer', x=-153.66, y=4.00, z=-124.78], abp['Pig'/116, l='MpServer', x=-152.44, y=4.00, z=-133.72], abp['Pig'/115, l='MpServer', x=-158.97, y=4.00, z=-136.84], abp['Pig'/114, l='MpServer', x=-151.97, y=4.00, z=-138.63], abh['Cow'/112, l='MpServer', x=-159.09, y=4.00, z=-148.94], cgi['GlitchiePlaysMC'/134, l='MpServer', x=-230.56, y=7.00, z=-196.76], aby['Sheep'/122, l='MpServer', x=-152.88, y=4.00, z=-120.97], aby['Sheep'/121, l='MpServer', x=-150.22, y=4.00, z=-116.72], abp['Pig'/120, l='MpServer', x=-151.66, y=4.00, z=-119.19]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at cch.a(SourceFile:308)
at bqx.b(SourceFile:2224)
at bqx.a(SourceFile:316)
at net.minecraft.client.main.Main.main(SourceFile:120)

– System Details –
Details:
Minecraft Version: 14w29b
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.7.0_60, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 251856040 bytes (240 MB) / 473956352 bytes (452 MB) up to 954728448 bytes (910 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 14w29b
LWJGL: 2.9.1
OpenGL: Intel(R) HD Graphics GL version 4.0.0 - Build 10.18.10.3309, Intel
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)

(it is single player not mutiplayer. don't know why it says mpserver)