SrMatiM7 Insider

I also have this problem in the 1.10.2

Complete details:
---- Minecraft Crash Report ----
// Why is it breaking :(

Time: 08-10-16 18:15
Description: Batching chunks

java.util.ConcurrentModificationException
	at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
	at java.util.ArrayList$Itr.next(Unknown Source)
	at aid.a(SourceFile:1868)
	at asv.a(SourceFile:636)
	at aim.a(SourceFile:68)
	at aim.r(SourceFile:60)
	at ChunkCacheOF.r(ChunkCacheOF.java:184)
	at bqy.b(RenderChunk.java:209)
	at bqu.a(ChunkRenderWorker.java:119)
	at bqu.run(ChunkRenderWorker.java:47)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Thread: Client thread
Stacktrace:
	at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
	at java.util.ArrayList$Itr.next(Unknown Source)
	at aid.a(SourceFile:1868)
	at asv.a(SourceFile:636)
	at aim.a(SourceFile:68)
	at aim.r(SourceFile:60)
	at ChunkCacheOF.r(ChunkCacheOF.java:184)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bnn['SrMatiM7'/3849, l='MpServer', x=-46,30, y=84,19, z=888,02]]
	Chunk stats: MultiplayerChunkCache: 81, 81
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (0,46,0), Chunk: (at 0,2,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 5112299 game time, 361172 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: ~~ERROR~~ ConcurrentModificationException: null
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bln.a(WorldClient.java:498)
	at bcx.b(SourceFile:2535)
	at bqu.run(ChunkRenderWorker.java:57)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.10.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_101, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 103173152 bytes (98 MB) / 528252928 bytes (503 MB) up to 1060372480 bytes (1011 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.10.2-OptiFine_HD_U_C3
	LWJGL: 2.9.4
	OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
	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: Yes
	Is Modded: Very likely; Jar signature invalidated
	Type: Client (map_client.txt)
	Resource Packs: RCF - CTM Addon.zip, RCF Clear Glass Addon.zip, Ragecraft Faithful 64x64.zip
	Current Language: Español (España)
	Profiler Position: N/A (disabled)
	CPU: 2x AMD E1-2100 APU with Radeon(TM) HD Graphics 
	OptiFine Version: OptiFine_1.10.2_HD_U_C3
	Render Distance Chunks: 4
	Mipmaps: 0
	Anisotropic Filtering: 1
	Antialiasing: 0
	Multitexture: false
	Shaders: null
	OpenGlVersion: 4.5.13399 Compatibility Profile Context 15.200.1065.0
	OpenGlRenderer: AMD Radeon HD 8210 Graphics
	OpenGlVendor: ATI Technologies Inc.
	CpuCount: 2