ConcurrentModificationException in LightUpdater when traversing WeakHashMap during light update

[LMaxRouterCN]

Context

[103月2025 01:10:00.964] [Render thread/ERROR] [net.minecraft.client.Minecraft/FATAL]: Unreported exception thrown!
java.util.ConcurrentModificationException: null
at java.util.WeakHashMap$HashIterator.nextEntry(WeakHashMap.java:815) ~[?:?]
at java.util.WeakHashMap$KeyIterator.next(WeakHashMap.java:848) ~[?:?]
at com.jozufozu.flywheel.light.LightUpdater.onLightUpdate(LightUpdater.java:133) ~[flywheel-forge-1.20.1-0.6.11-13.jar%231208!/:0.6.11-13]
at net.minecraft.client.multiplayer.ClientChunkCache.handler$bpi000$flywheel$onLightUpdate(ClientChunkCache.java:1033) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.multiplayer.ClientChunkCache.m_6506_$mixinextras$wrapped$38(ClientChunkCache.java) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.multiplayer.ClientChunkCache.mixinextras$bridge$m_6506_$mixinextras$wrapped$38$39(ClientChunkCache.java) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.multiplayer.ClientChunkCache.wrapMethod$hpf000$onLightUpdateWrap(ClientChunkCache.java:3520) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.multiplayer.ClientChunkCache.m_6506_(ClientChunkCache.java) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at ca.spottedleaf.starlight.common.light.StarLightEngine.updateVisible(StarLightEngine.java:269) ~[优化%20%20星光%20starlight-1.1.2+forge.1cda73c测试.jar%23609!/:1.1.2+forge.1cda73c]
at ca.spottedleaf.starlight.common.light.StarLightEngine.blocksChangedInChunk(StarLightEngine.java:430) ~[优化%20%20星光%20starlight-1.1.2+forge.1cda73c测试.jar%23609!/:1.1.2+forge.1cda73c]
at ca.spottedleaf.starlight.common.light.StarLightInterface.propagateChanges(StarLightInterface.java:549) ~[优化%20%20星光%20starlight-1.1.2+forge.1cda73c测试.jar%23609!/:1.1.2+forge.1cda73c]
at net.minecraft.world.level.lighting.LevelLightEngine.m_9323_(LevelLightEngine.java:1099) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.renderer.LevelRenderer.m_109599_(LevelRenderer.java:1124) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.renderer.GameRenderer.m_109089_(GameRenderer.java:1126) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.renderer.GameRenderer.m_109093_(GameRenderer.java:909) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.Minecraft.m_91383_(Minecraft.java:1146) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.Minecraft.m_91374_(Minecraft.java:718) ~[client-1.20.1-20230612.114412-srg.jar%23926!/:?]
at net.minecraft.client.main.Main.main(Main.java:218) ~[工业革命：2040.jar:?]
at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:580) ~[?:?]
at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:111) ~[fmlloader-1.20.1-47.3.12.jar:?]
at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:99) ~[fmlloader-1.20.1-47.3.12.jar:?]
at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$makeService$0(CommonClientLaunchHandler.java:25) ~[fmlloader-1.20.1-47.3.12.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:103) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:580) ~[?:?]
at oolloo.jlw.Wrapper.invokeMain(Wrapper.java:112) ~[?:?]
at oolloo.jlw.Wrapper.main(Wrapper.java:105) ~[?:?]

My game crashes when I enter Nether Portal.

错误报告-2025-3-10_1.17.19.zip
Here is the full crash report .

It's a large pack with a lot of mods, but I think it has something to do with starlight?
I can't remove other mods to be sure that the problem is just a bug between flywheel and starlight, it's a special case.

Crash Report

👆

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