Can Only Hit Mobs 1/2 Of The Time

Please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]) here.

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

Time: 7/27/14 1:03 PM
Description: Manually triggered debug crash

java.lang.Throwable
	at bao.p(SourceFile:1405)
	at bao.ak(SourceFile:774)
	at bao.f(SourceFile:728)
	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 bjf.a(SourceFile:289)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bjk['brookster215'/388, l='MpServer', x=-107.35, y=80.62, z=363.82]]
	Chunk stats: MultiplayerChunkCache: 81, 81
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-56,64,256), Chunk: (at 8,4,0 in -4,16; contains blocks -64,0,256 to -49,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 1584 game time, 1584 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; [wg['Chicken'/152, l='MpServer', x=-125.91, y=74.00, z=377.81], wg['Chicken'/153, l='MpServer', x=-117.10, y=80.00, z=368.91], wp['Sheep'/154, l='MpServer', x=-120.50, y=79.00, z=377.25], wp['Sheep'/155, l='MpServer', x=-127.34, y=67.00, z=398.50], wp['Sheep'/156, l='MpServer', x=-118.84, y=80.00, z=390.22], wg['Chicken'/146, l='MpServer', x=-123.02, y=64.40, z=290.88], yl['Skeleton'/147, l='MpServer', x=-126.50, y=19.00, z=318.13], ws['Squid'/148, l='MpServer', x=-125.72, y=62.00, z=334.78], we['Bat'/390, l='MpServer', x=-79.39, y=29.66, z=326.52], wg['Chicken'/149, l='MpServer', x=-117.65, y=80.00, z=367.64], we['Bat'/389, l='MpServer', x=-91.74, y=28.23, z=339.40], wg['Chicken'/150, l='MpServer', x=-119.59, y=80.00, z=367.63], wg['Chicken'/151, l='MpServer', x=-125.83, y=79.00, z=363.64], we['Bat'/171, l='MpServer', x=-105.25, y=14.10, z=305.75], wp['Sheep'/175, l='MpServer', x=-111.50, y=85.00, z=392.50], wg['Chicken'/174, l='MpServer', x=-106.38, y=78.00, z=358.41], wg['Chicken'/173, l='MpServer', x=-103.32, y=81.00, z=360.41], wg['Chicken'/172, l='MpServer', x=-108.75, y=77.66, z=358.52], ws['Squid'/187, l='MpServer', x=-89.50, y=58.38, z=305.28], yl['Skeleton'/184, l='MpServer', x=-87.50, y=29.00, z=291.50], yq['Zombie'/185, l='MpServer', x=-91.50, y=13.00, z=315.50], ws['Squid'/190, l='MpServer', x=-88.50, y=56.25, z=333.50], ws['Squid'/191, l='MpServer', x=-90.06, y=57.81, z=336.16], yq['Zombie'/188, l='MpServer', x=-82.50, y=23.00, z=333.50], ws['Squid'/189, l='MpServer', x=-85.50, y=60.38, z=327.09], bjk['brookster215'/388, l='MpServer', x=-107.35, y=80.62, z=363.82], wp['Sheep'/176, l='MpServer', x=-103.13, y=91.00, z=400.09], yl['Skeleton'/183, l='MpServer', x=-88.50, y=29.00, z=290.50], we['Bat'/205, l='MpServer', x=-73.40, y=11.49, z=313.73], wh['Cow'/204, l='MpServer', x=-70.50, y=67.00, z=291.53], ws['Squid'/207, l='MpServer', x=-79.50, y=56.34, z=327.81], we['Bat'/206, l='MpServer', x=-63.06, y=15.02, z=322.09], wh['Cow'/203, l='MpServer', x=-80.75, y=69.00, z=297.41], yq['Zombie'/76, l='MpServer', x=-171.50, y=40.00, z=344.50], yq['Zombie'/77, l='MpServer', x=-174.66, y=39.00, z=347.66], wp['Sheep'/78, l='MpServer', x=-161.78, y=64.00, z=350.50], yq['Zombie'/79, l='MpServer', x=-175.63, y=35.00, z=360.88], ws['Squid'/193, l='MpServer', x=-89.84, y=56.00, z=335.22], wp['Sheep'/73, l='MpServer', x=-160.19, y=82.00, z=292.88], ws['Squid'/192, l='MpServer', x=-87.53, y=56.81, z=338.03], yq['Zombie'/74, l='MpServer', x=-168.91, y=41.00, z=350.72], yq['Zombie'/75, l='MpServer', x=-171.50, y=40.00, z=341.50], wp['Sheep'/87, l='MpServer', x=-154.13, y=83.00, z=291.91], xz['Creeper'/216, l='MpServer', x=-50.50, y=17.00, z=293.50], wp['Sheep'/81, l='MpServer', x=-163.84, y=73.00, z=382.34], we['Bat'/217, l='MpServer', x=-52.75, y=46.51, z=288.63], wp['Sheep'/80, l='MpServer', x=-172.78, y=62.00, z=357.25], wp['Sheep'/83, l='MpServer', x=-161.59, y=73.00, z=381.03], we['Bat'/218, l='MpServer', x=-66.11, y=15.07, z=320.71], wp['Sheep'/82, l='MpServer', x=-164.09, y=73.00, z=384.13], wp['Sheep'/93, l='MpServer', x=-159.19, y=64.00, z=350.63], wp['Sheep'/92, l='MpServer', x=-157.50, y=63.00, z=350.50], yq['Zombie'/95, l='MpServer', x=-157.50, y=52.00, z=364.50], xz['Creeper'/215, l='MpServer', x=-50.50, y=17.00, z=295.50], yq['Zombie'/94, l='MpServer', x=-155.50, y=52.00, z=370.34], xz['Creeper'/89, l='MpServer', x=-147.50, y=39.00, z=323.97], yl['Skeleton'/88, l='MpServer', x=-154.19, y=35.27, z=331.30], xz['Creeper'/91, l='MpServer', x=-156.50, y=49.00, z=321.50], xz['Creeper'/90, l='MpServer', x=-155.03, y=39.00, z=321.53], wo['Pig'/102, l='MpServer', x=-152.50, y=72.00, z=383.50], wo['Pig'/103, l='MpServer', x=-154.50, y=72.00, z=382.50], we['Bat'/100, l='MpServer', x=-159.18, y=51.76, z=364.98], wo['Pig'/101, l='MpServer', x=-157.25, y=73.00, z=379.78], yl['Skeleton'/98, l='MpServer', x=-144.50, y=22.00, z=374.50], xz['Creeper'/99, l='MpServer', x=-158.50, y=52.00, z=368.50], yq['Zombie'/96, l='MpServer', x=-154.50, y=52.00, z=361.50], we['Bat'/97, l='MpServer', x=-157.63, y=52.99, z=368.29], yl['Skeleton'/231, l='MpServer', x=-34.50, y=24.00, z=378.50], yl['Skeleton'/230, l='MpServer', x=-34.50, y=24.00, z=377.50], wg['Chicken'/229, l='MpServer', x=-45.59, y=93.00, z=308.56], wg['Chicken'/228, l='MpServer', x=-44.50, y=85.00, z=302.50], wg['Chicken'/227, l='MpServer', x=-47.47, y=84.00, z=291.53], wg['Chicken'/226, l='MpServer', x=-48.53, y=85.00, z=294.53], wo['Pig'/104, l='MpServer', x=-152.50, y=72.00, z=379.50], wp['Sheep'/105, l='MpServer', x=-157.84, y=70.00, z=377.19], yl['Skeleton'/119, l='MpServer', x=-131.47, y=21.00, z=309.38], yl['Skeleton'/118, l='MpServer', x=-132.94, y=21.00, z=311.72], wg['Chicken'/117, l='MpServer', x=-128.50, y=65.00, z=289.50], yq['Zombie'/116, l='MpServer', x=-134.50, y=20.00, z=301.50], wp['Sheep'/124, l='MpServer', x=-134.50, y=65.00, z=400.50], wp['Sheep'/123, l='MpServer', x=-134.78, y=67.00, z=398.50], we['Bat'/122, l='MpServer', x=-140.83, y=52.00, z=339.81], wg['Chicken'/121, l='MpServer', x=-129.53, y=61.96, z=331.47], yl['Skeleton'/120, l='MpServer', x=-133.69, y=21.00, z=311.03]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bjf.a(SourceFile:289)
	at bao.b(SourceFile:1972)
	at bao.f(SourceFile:737)
	at net.minecraft.client.main.Main.main(SourceFile:148)

-- System Details --
Details:
	Minecraft Version: 1.7.10
	Operating System: Windows 8.1 (x86) version 6.3
	Java Version: 1.7.0_65, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 158350216 bytes (151 MB) / 288858112 bytes (275 MB) up to 523501568 bytes (499 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 11, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 1.7.10
	LWJGL: 2.9.1
	OpenGL: Intel(R) HD Graphics 4000 GL version 4.0.0 - Build 10.18.10.3621, Intel
	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: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Anisotropic Filtering: Off (1)

Duplicate of MC-67665 (since it has more info and if updated to 1.8).