I logged in and found all my ladders placed normally as they should be, but for some reason their selection box / hit box is now all facing North. I tried to break it and that was all fine, when I tried replacing it though it crashed my game. I tried multiple times.

I did also go back into the earlier 14w27b snapshot and found all the ladders back to normal.

The error message im getting is:
---- Minecraft Crash Report ----
// Sorry

Time: 7/10/14 2:23 AM
Description: Unexpected error

java.lang.IllegalArgumentException: Cannot get property bck

as it does not exist!
at bbw.b(SourceFile:91)
at avi.a(SourceFile:47)
at avi.a(SourceFile:35)
at apm.a(SourceFile:2320)
at ait.a(SourceFile:106)
at cdt.a(SourceFile:295)
at bqi.ar(SourceFile:1325)
at bqi.q(SourceFile:1682)
at bqi.ap(SourceFile:863)
at bqi.a(SourceFile:303)
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 bbw.b(SourceFile:91)
at avi.a(SourceFile:47)
at avi.a(SourceFile:35)
at apm.a(SourceFile:2320)
at ait.a(SourceFile:106)
at cdt.a(SourceFile:295)
at bqi.ar(SourceFile:1325)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [chv['DardyPiglet'/41, l='MpServer', x=28.09, y=68.00, z=-2438.98]]
Chunk stats: MultiplayerChunkCache: 624, 624
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: 125.00,19.00,-2424.00 - World: (125,19,-2424), Chunk: (at 13,1,8 in 7,-152; contains blocks 112,0,-2432 to 127,255,-2417), Region: (0,-5; contains chunks 0,-160 to 31,-129, blocks 0,0,-2560 to 511,255,-2049)
Level time: 2142034 game time, 114927 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: 19 total; [abb['Bat'/0, l='MpServer', x=-42.22, y=33.13, z=-2448.41], abb['Bat'/1, l='MpServer', x=-50.57, y=30.88, z=-2369.60], abb['Bat'/3, l='MpServer', x=-39.25, y=40.50, z=-2460.99], abb['Bat'/4, l='MpServer', x=-15.28, y=10.10, z=-2476.56], abb['Bat'/5, l='MpServer', x=-0.39, y=10.61, z=-2466.02], abb['Bat'/6, l='MpServer', x=-5.25, y=6.10, z=-2425.25], abb['Bat'/7, l='MpServer', x=-23.66, y=31.06, z=-2388.63], abb['Bat'/8, l='MpServer', x=13.59, y=0.03, z=-2481.07], abb['Bat'/9, l='MpServer', x=3.46, y=43.14, z=-2451.71], abb['Bat'/10, l='MpServer', x=-2.25, y=32.75, z=-2402.65], abb['Bat'/11, l='MpServer', x=-1.82, y=36.22, z=-2392.89], abb['Bat'/12, l='MpServer', x=20.53, y=30.93, z=-2494.76], abw['Sheep'/13, l='MpServer', x=32.06, y=35.00, z=-2402.38], abw['Sheep'/15, l='MpServer', x=44.47, y=30.00, z=-2385.16], abn['Pig'/16, l='MpServer', x=44.03, y=30.00, z=-2392.50], abn['Pig'/17, l='MpServer', x=47.09, y=30.00, z=-2377.81], abw['Sheep'/19, l='MpServer', x=61.94, y=30.00, z=-2388.03], abw['Sheep'/20, l='MpServer', x=57.09, y=30.00, z=-2373.06], chv['DardyPiglet'/41, l='MpServer', x=28.09, y=68.00, z=-2438.98]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at cdu.a(SourceFile:308)
at bqi.b(SourceFile:2139)
at bqi.a(SourceFile:317)
at net.minecraft.client.main.Main.main(SourceFile:120)

– System Details –
Details:
Minecraft Version: 14w28a
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_05, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 103930720 bytes (99 MB) / 328204288 bytes (313 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: 14w28a
LWJGL: 2.9.1
OpenGL: GeForce GTX 770/PCIe/SSE2 GL version 4.4.0, NVIDIA Corporation
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.

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)

Thanks

• dafreo