Not So Seecret Saturday Forum

When i go up from Y12 it ALWAYS produces this error

--- BEGIN ERROR REPORT a1dce528 --------
Generated 8/30/25 11:22 AM

Minecraft: Minecraft Alpha v1.1.11_100
OS: Windows 10 (amd64) version 10.0
Java: 1.8.0_441, Oracle Corporation
VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
LWJGL: 2.9.0
OpenGL: Intel(R) HD Graphics 630 version 4.6.0 - Build 30.0.101.1692, Intel

java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeLo(Unknown Source)
at java.util.TimSort.mergeAt(Unknown Source)
at java.util.TimSort.mergeCollapse(Unknown Source)
at java.util.TimSort.sort(Unknown Source)
at java.util.Arrays.sort(Unknown Source)
at com.mojang.minecraft.render.RenderGlobal.func_943_a(RenderGlobal.java:475)
at com.mojang.minecraft.render.EntityRenderer.renderWorld(EntityRenderer.java:508)
at com.mojang.minecraft.render.EntityRenderer.updateCameraAndRender(EntityRenderer.java:406)
at com.mojang.minecraft.Minecraft.run(Minecraft.java:688)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 42b64d5a ----------

Could anyone figure out whats happening?