14w30b crashlog

---- Minecraft Crash Report ----
// Sorry :(

Time: 7/23/14 10:05 AM
Description: Tesselating block model

java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
	at java.util.ArrayList.rangeCheck(ArrayList.java:635)
	at java.util.ArrayList.get(ArrayList.java:411)
	at csu.b(SourceFile:88)
	at chc.a(SourceFile:156)
	at cjs.a(SourceFile:254)
	at cjs.b(SourceFile:105)
	at cjs.a(SourceFile:45)
	at cjs.a(SourceFile:35)
	at cjq.a(SourceFile:62)
	at cmt.b(SourceFile:156)
	at cmm.a(SourceFile:71)
	at cmm.run(SourceFile:31)
	at java.lang.Thread.run(Thread.java:745)


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

-- Head --
Stacktrace:
	at java.util.ArrayList.rangeCheck(ArrayList.java:635)
	at java.util.ArrayList.get(ArrayList.java:411)
	at csu.b(SourceFile:88)
	at chc.a(SourceFile:156)
	at cjs.a(SourceFile:254)
	at cjs.b(SourceFile:105)

-- Block model being tesselated --
Details:
	Block: minecraft:sand[variant=sand]
	Block location: World: (-307,62,-203), Chunk: (at 13,3,5 in -20,-13; contains blocks -320,0,-208 to -305,255,-193), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Using AO: false
Stacktrace:
	at cjs.a(SourceFile:45)
	at cjs.a(SourceFile:35)

-- Block being tesselated --
Details:
	Block type: ID #12 (tile.sand // ayt)
	Block data value: 0 / 0x0 / 0b0000
	Block location: World: (-307,62,-203), Chunk: (at 13,3,5 in -20,-13; contains blocks -320,0,-208 to -305,255,-193), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Stacktrace:
	at cjq.a(SourceFile:62)
	at cmt.b(SourceFile:156)
	at cmm.a(SourceFile:71)
	at cmm.run(SourceFile:31)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 14w30b
	Operating System: Linux (amd64) version 3.13.0-24-generic
	Java Version: 1.7.0_65, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 190530824 bytes (181 MB) / 505937920 bytes (482 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 1 total; -Xmx1G
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94