Fatal error preventing game startup.

[Fluffy59]

A fatal error has been detected by the Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffdfe18c857, pid=28472, tid=14224

JRE version: OpenJDK Runtime Environment Microsoft-11369940 (21.0.7+6) (build 21.0.7+6-LTS)
Java VM: OpenJDK 64-Bit Server VM Microsoft-11369940 (21.0.7+6-LTS, mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, windows-amd64)
Problematic frame:
C [lwjgl_opengl.dll+0xc857]

No core dump will be written. Minidumps are not enabled by default on client versions of Windows

If you would like to submit a bug report, please visit:
https://aka.ms/minecraftjavacrashes
The crash happened outside the Java Virtual Machine in native code.
See problematic frame for where to report the bug.

--------------- S U M M A R Y ------------

Command Line: -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Djava.library.path=\curseforge\minecraft\Install\bin\0be905121d88361f3280036f1c0c4e89b2c7f741 -Djna.tmpdir=\curseforge\minecraft\Install\bin\0be905121d88361f3280036f1c0c4e89b2c7f741 -Dorg.lwjgl.system.SharedLibraryExtractPath=\curseforge\minecraft\Install\bin\0be905121d88361f3280036f1c0c4e89b2c7f741 -Dio.netty.native.workdir=\curseforge\minecraft\Install\bin\0be905121d88361f3280036f1c0c4e89b2c7f741 -Dminecraft.launcher.brand=minecraft-launcher -Dminecraft.launcher.version=3.29.46 -DFabricMcEmu= net.minecraft.client.main.Main -Xmx8192m -Xms256m -Dminecraft.applet.TargetDirectory=\curseforge\minecraft\Instances\Minecraft+++ ultra deluxe+++++ -Dfml.ignorePatchDiscrepancies=true -Dfml.ignoreInvalidMinecraftCertificates=true -Duser.language=en -Duser.country=US -DCFInstanceId=418ee8e4-5db1-42fe-a654-ab2cfe943bd9 -DlibraryDirectory=\curseforge\minecraft\Install\libraries -Dlog4j.configurationFile=\curseforge\minecraft\Install\assets\log_configs\client-1.21.2.xml net.fabricmc.loader.impl.launch.knot.KnotClient --version fabric-loader-0.18.4-1.21.4 --gameDir \curseforge\minecraft\Instances\Minecraft+++ ultra deluxe+++++ --assetsDir \curseforge\minecraft\Install\assets --assetIndex 19 --userType msa --versionType release --width 3440 --height 1440 --quickPlayPath \curseforge\minecraft\Install\quickPlay\java\1774220705272.json

Host: 11th Gen Intel(R) Core(TM) i7-11700F @ 2.50GHz, 16 cores, 31G, Windows 11 , 64 bit Build 26100 (10.0.26100.7920)
Time: Sun Mar 22 18:05:17 2026 Central Daylight Time elapsed time: 12.646194 seconds (0d 0h 0m 12s)

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Full error log is extremely long, will only provide if needed.

[grubbagrab]

You are using windows 11 correct? I as a windows 10 user, also haven't been able to launch on the newest release because I realized it was only released as a linux version. That is, if you are trying to use radiance 0.1.4-alpha as I am.