Version: 1.1
Forge: 12.18.3.2316

When changing modes on a hardend exchanger past 25x25 client crashed with:

Time: 7/10/17 9:43 PM
Description: Unexpected error

java.lang.ArrayIndexOutOfBoundsException: 13
at me.jacky1356400.exchangers.handler.GUIHandler.onGameOverlayRender(GUIHandler.java:88)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_1232_GUIHandler_onGameOverlayRender_RenderGameOverlayEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185)
at net.minecraftforge.client.GuiIngameForge.post(GuiIngameForge.java:888)
at net.minecraftforge.client.GuiIngameForge.renderExperience(GuiIngameForge.java:586)
at net.minecraftforge.client.GuiIngameForge.func_175180_a(GuiIngameForge.java:167)
at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1072)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1076)
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(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

I know what's causing the crash. Hardened exchanger was meant to do only 7x7 area, Will push a fix soon.

Not sure if this was fixed yet or not, but the current version that came out after your post still has the issue. Thanks again!

I did release 1.2 before this issue opened, but it's not fixed yet by the looks of it, I am just trying to fix everything at once before releasing another update.

Fixed in 1.10.2-1.3.