People are reporting crashes when they join our server. Not sure if it's caused by Reborn Storage. Posting just in case.

Crash report: http://paste2.org/5JHGx1aH

`Description: Ticking block entity

java.util.ConcurrentModificationException
at java.util.ArrayList$ArrayListSpliterator.tryAdvance(Unknown Source)
at java.util.stream.ReferencePipeline.forEachWithCancel(Unknown Source)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(Unknown Source)
at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
at java.util.stream.FindOps$FindOp.evaluateSequential(Unknown Source)
at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
at java.util.stream.ReferencePipeline.findFirst(Unknown Source)
at com.raoulvdberge.refinedstorage.apiimpl.autocrafting.CraftingPattern.(CraftingPattern.java:53)
at com.raoulvdberge.refinedstorage.item.ItemPattern.create(ItemPattern.java:210)
at RebornStorage.multiblocks.MultiBlockCrafter.rebuildPatterns(MultiBlockCrafter.java:207)
at RebornStorage.tiles.TileMultiCrafter.func_73660_a(TileMultiCrafter.java:121)
at net.minecraft.world.World.func_72939_s(World.java:1804)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1789)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1055)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:371)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:310)
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:395)
at org.multimc.EntryPoint.listen(EntryPoint.java:170)
at org.multimc.EntryPoint.main(EntryPoint.java:54)`

Sure. How do I contact you? We're using our own mod pack which may not be distributed publicly.

We have a discord server: https://discord.gg/0tCDWb77cvetwm0e If that isnt sutible let me know. If its too much of a pain to send me the world it doesnt matter.

I have the same issue on the server. 6Gb memory for Java, 2 chunk distance, fast graphics, better foliage off.
Report: http://paste2.org/b4KgUe0L

Anychance you could send me a world that I could use to test this issue.

Sorry, I don't use Discord.
What extra information do you hope to get from loading the world that's not in the crash-report?

It doesnt matter, I should be able to sort it out anyway. I will see what I can do.

I can not reproduce this issue