java.lang.ArrayIndexOutOfBoundsException: -1 [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.world.chunk.Chunk.func_150810_a(Chunk.java:511) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at CoroUtil.world.grid.chunk.ChunkDataPoint.initFirstTime(ChunkDataPoint.java:78) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at CoroUtil.world.grid.chunk.ChunkDataGrid.getChunkData(ChunkDataGrid.java:58) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at CoroUtil.world.grid.chunk.ChunkDataGrid.getChunkData(ChunkDataGrid.java:38) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at CoroUtil.forge.EventHandlerForge.blockPlayerInteract(EventHandlerForge.java:73) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.common.eventhandler.ASMEventHandler_388_EventHandlerForge_blockPlayerInteract_PlayerInteractEvent.invoke(.dynamic) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.event.ForgeEventFactory.onPlayerInteract(ForgeEventFactory.java:100) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.server.management.ItemInWorldManager.func_73074_a(ItemInWorldManager.java:140) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.network.NetHandlerPlayServer.func_147345_a(NetHandlerPlayServer.java:489) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.network.play.client.C07PacketPlayerDigging.func_148833_a(SourceFile:53) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.network.play.client.C07PacketPlayerDigging.func_148833_a(SourceFile:8) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) [11:52:53] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

and than a lot of java.lang.ArrayIndexOutOfBoundsException

Me too :(

Looks related to other issue posted, is now fixed in this commit 8ca6370

Will push an update to site soon.