Out of bounds possible with 3x3x3 object (Presumably the stasis chamber)

Start with the crash report’s stack trace at ChunkRenderDispatcherMixin and RenderChunkRegion.m_8055_; the report links the failure to chunk rendering and suggests a 3×3×3 object such as the stasis chamber. Reproduce the crash with that object and trace how its render data is accessed. Done when rendering it no longer causes an out-of-bounds exception.

`---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 2026-10-11 20:21:39
Description: Batching chunks

java.lang.ArrayIndexOutOfBoundsException: Index 26 out of bounds for length 3
at net.minecraft.client.renderer.chunk.RenderChunkRegion.m_8055_(RenderChunkRegion.java:34) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B}
at net.minecraft.client.renderer.chunk.ChunkRenderDispatcher$RenderChunk$RebuildTask.handler$zci000$addCompileSteps(ChunkRenderDispatcher.java:803) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:changed.mixins.json:client.ChunkRenderDispatcherMixin,pl:mixin:A}
at net.minecraft.client.renderer.chunk.ChunkRenderDispatcher$RenderChunk$RebuildTask.m_234467_(ChunkRenderDispatcher.java:602) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:changed.mixins.json:client.ChunkRenderDispatcherMixin,pl:mixin:A}
at net.minecraft.client.renderer.chunk.ChunkRenderDispatcher$RenderChunk$RebuildTask.m_5869_(ChunkRenderDispatcher.java:556) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:changed.mixins.json:client.ChunkRenderDispatcherMixin,pl:mixin:A}
at net.minecraft.client.renderer.chunk.ChunkRenderDispatcher.m_194412_(ChunkRenderDispatcher.java:128) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,re:classloading}
at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1789) ~[?:?] {}
at java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1781) ~[?:?] {}
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:511) ~[?:?] {}
at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1450) ~[?:?] {}
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019) ~[?:?] {}
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187) ~[?:?] {}

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

-- Head --
Thread: Render thread
Suspected Mod:
Changed: Minecraft Mod (changed), Version: 0.15.7
Issue tracker URL: https://github.com/LtxProgrammer/Changed-Minecraft-Mod/issues
Mixin class: net.ltxprogrammer.changed.mixin.client.ChunkRenderDispatcherMixin
Target: net.minecraft.client.renderer.chunk.ChunkRenderDispatcher$RenderChunk$RebuildTask
at TRANSFORMER/[email protected]/net.minecraft.client.renderer.chunk.ChunkRenderDispatcher$RenderChunk$RebuildTask.handler$zci000$addCompileSteps(ChunkRenderDispatcher.java:803)
Stacktrace:
at net.minecraft.client.multiplayer.ClientLevel.m_6026_(ClientLevel.java:455) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,re:classloading,pl:mixin:APP:changed.mixins.json:client.ClientLevelMixin,pl:mixin:A}
-- Affected level --
Details:
All players: 1 total; [LocalPlayer['Kodyris'/48, l='ClientLevel', x=-542.32, y=192.95, z=176.54]]
Chunk stats: 961, 598
Level dimension: minecraft:overworld
Level spawn location: World: (0,173,0), Section: (at 0,13,0 in 0,10,0; chunk contains blocks 0,-64,0 to 15,319,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511)
Level time: 177487 game time, 188183 day time
Server brand: forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.multiplayer.ClientLevel.m_6026_(ClientLevel.java:455) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,re:classloading,pl:mixin:APP:changed.mixins.json:client.ClientLevelMixin,pl:mixin:A}
at net.minecraft.client.Minecraft.m_91354_(Minecraft.java:2319) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:A}
at net.minecraft.client.Minecraft.lambda$delayCrash$24(Minecraft.java:829) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:A}
at net.minecraft.client.Minecraft.m_91374_(Minecraft.java:708) ~[client-1.20.1-20230612.114412-srg.jar%23144!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:A}
at net.minecraft.client.main.Main.main(Main.java:218) ~[minecraft-1.20.1-client.jar:?] {re:classloading}
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[?:?] {}
at java.lang.reflect.Method.invoke(Method.java:565) ~[?:?] {}
at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:111) ~[fmlloader-1.20.1-47.4.26.jar:?] {}
at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:99) ~[fmlloader-1.20.1-47.4.26.jar:?] {}
at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$makeService$0(CommonClientLaunchHandler.java:25) ~[fmlloader-1.20.1-47.4.26.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] {}
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[?:?] {}
at java.lang.reflect.Method.invoke(Method.java:565) ~[?:?] {}
at io.github.zekerzhayard.forgewrapper.installer.Main.main(Main.java:69) ~[?:?] {}
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[?:?] {}
at java.lang.reflect.Method.invoke(Method.java:565) ~[?:?] {}
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:243) ~[?:?] {}
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:278) ~[?:?] {}
at org.multimc.EntryPoint.listen(EntryPoint.java:143) ~[?:?] {}
at org.multimc.EntryPoint.main(EntryPoint.java:34) ~[?:?] {}`