compatibility issue with stfu (it's a performance mod not an insult)

[MarkuGaming]

I use Prism launcher with the lastest version of ALAND optimized hypixel skyblock and i needed the mod for m7s
Sadly i need that mod since it's the only one that truly works for me.

It started working after i deleted "ClientWorldMixin" in the mixin.json but that's only a temporary fix

not a programmer but maybe this can help.

Ai said:"
This means:

Aaron Mod tries to inject (via Mixin) into the class ClientWorld (net.minecraft.class_638).

Another mod (specifically STFU, which patches the same class) already injected into that same method (method_23789, a method in the rendering pipeline — likely weather/lightning rendering).

Both have equal priority (1000) → mixin conflict → the class fails to transform → crash.

So this is not a missing file or bad config; it’s a Mixin conflict between aaron-mod and stfu (or possibly another client optimization mod).

locate the ClientWorldMixin entry.

Then change:

"priority": 1000

to something higher, e.g.

"priority": 1100

That lets Aaron Mod’s mixin apply after STFU’s.
"

Here's the log, i'll ask the same to the other mod creator just in case.

"[16:36:57] [main/ERROR]: Mixin apply for mod aaron-mod failed aaron-mod.mixins.json:ClientWorldMixin from mod aaron-mod -> net.minecraft.class_638: org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException @at("INVOKE") on net/minecraft/class_638::aaronMod$hideLightningFlashes with priority 1000 cannot inject into net/minecraft/class_638::method_23789()I merged by stfu.mixin.ClientWorldMixin with priority 1000 [INJECT_PREPARE Applicator Phase -> aaron-mod.mixins.json:ClientWorldMixin from mod aaron-mod -> Prepare Injections -> modifyExpressionValue$zzi000$aaron-mod$aaronMod$hideLightningFlashes(Z)Z -> Prepare -> -> { target: method_23789()I }]
org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException: @at("INVOKE") on net/minecraft/class_638::aaronMod$hideLightningFlashes with priority 1000 cannot inject into net/minecraft/class_638::method_23789()I merged by stfu.mixin.ClientWorldMixin with priority 1000 [INJECT_PREPARE Applicator Phase -> aaron-mod.mixins.json:ClientWorldMixin from mod aaron-mod -> Prepare Injections -> modifyExpressionValue$zzi000$aaron-mod$aaronMod$hideLightningFlashes(Z)Z -> Prepare -> -> { target: method_23789()I }]
at org.spongepowered.asm.mixin.injection.code.Injector.findTargetNodes(Injector.java:312) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.injection.code.Injector.find(Injector.java:248) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.prepare(InjectionInfo.java:475) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at knot/com.llamalad7.mixinextras.injector.ModifyExpressionValueInjectionInfo.prepare(ModifyExpressionValueInjectionInfo.java:25) ~[mixinextras-0.5.0-1f6627383f457848.jar:?]
at org.spongepowered.asm.mixin.transformer.MixinTargetContext.prepareInjections(MixinTargetContext.java:1407) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.prepareInjections(MixinApplicatorStandard.java:731) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.applyMixin(MixinApplicatorStandard.java:315) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:246) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:352) [sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:237) [sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) [sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:435) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:336) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) [fabric-loader-0.17.2.jar:?]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) [?:?]
at knot/net.minecraft.class_11474.method_71874(class_11474.java:34) [client-intermediary.jar:?]
at knot/net.minecraft.class_10395.method_65385(class_10395.java:30) [client-intermediary.jar:?]
at knot/net.minecraft.client.main.Main.main(Main.java:142) [client-intermediary.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:506) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) [fabric-loader-0.17.2.jar:?]
at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:105) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.listen(EntryPoint.java:129) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.main(EntryPoint.java:70) [NewLaunch.jar:?]
[16:36:59] [main/ERROR]: Mixin apply for mod aaron-mod failed aaron-mod.mixins.json:ClientWorldMixin from mod aaron-mod -> net.minecraft.class_638: org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException @at("INVOKE") on net/minecraft/class_638::aaronMod$hideLightningFlashes with priority 1000 cannot inject into net/minecraft/class_638::method_23789()I merged by stfu.mixin.ClientWorldMixin with priority 1000 [INJECT_PREPARE Applicator Phase -> aaron-mod.mixins.json:ClientWorldMixin from mod aaron-mod -> Prepare Injections -> modifyExpressionValue$zzi000$aaron-mod$aaronMod$hideLightningFlashes(Z)Z -> Prepare -> -> { target: method_23789()I }]
org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException: @at("INVOKE") on net/minecraft/class_638::aaronMod$hideLightningFlashes with priority 1000 cannot inject into net/minecraft/class_638::method_23789()I merged by stfu.mixin.ClientWorldMixin with priority 1000 [INJECT_PREPARE Applicator Phase -> aaron-mod.mixins.json:ClientWorldMixin from mod aaron-mod -> Prepare Injections -> modifyExpressionValue$zzi000$aaron-mod$aaronMod$hideLightningFlashes(Z)Z -> Prepare -> -> { target: method_23789()I }]
at org.spongepowered.asm.mixin.injection.code.Injector.findTargetNodes(Injector.java:312) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.injection.code.Injector.find(Injector.java:248) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.prepare(InjectionInfo.java:475) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at knot/com.llamalad7.mixinextras.injector.ModifyExpressionValueInjectionInfo.prepare(ModifyExpressionValueInjectionInfo.java:25) ~[mixinextras-0.5.0-1f6627383f457848.jar:?]
at org.spongepowered.asm.mixin.transformer.MixinTargetContext.prepareInjections(MixinTargetContext.java:1407) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.prepareInjections(MixinApplicatorStandard.java:731) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.applyMixin(MixinApplicatorStandard.java:315) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:246) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:352) [sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:237) [sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) [sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:435) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:336) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) [fabric-loader-0.17.2.jar:?]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) [?:?]
at knot/net.minecraft.client.main.Main.main(Main.java:222) [client-intermediary.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:506) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) [fabric-loader-0.17.2.jar:?]
at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:105) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.listen(EntryPoint.java:129) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.main(EntryPoint.java:70) [NewLaunch.jar:?]
[16:36:59] [main/ERROR]: Minecraft has crashed!
net.fabricmc.loader.impl.FormattedException: java.lang.RuntimeException: Mixin transformation of net.minecraft.class_638 failed
at net.fabricmc.loader.impl.FormattedException.ofLocalized(FormattedException.java:63) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:508) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72) [fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) [fabric-loader-0.17.2.jar:?]
at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:105) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.listen(EntryPoint.java:129) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.main(EntryPoint.java:70) [NewLaunch.jar:?]
Caused by: java.lang.RuntimeException: Mixin transformation of net.minecraft.class_638 failed
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:440) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:336) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.17.2.jar:?]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
at knot/net.minecraft.client.main.Main.main(Main.java:222) ~[minecraft-1.21.8-client.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:506) ~[fabric-loader-0.17.2.jar:?]
... 5 more
Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:381) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:237) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:435) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:336) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.17.2.jar:?]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
at knot/net.minecraft.client.main.Main.main(Main.java:222) ~[minecraft-1.21.8-client.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:506) ~[fabric-loader-0.17.2.jar:?]
... 5 more
Caused by: org.spongepowered.asm.mixin.throwables.MixinApplyError: Mixin [aaron-mod.mixins.json:ClientWorldMixin from mod aaron-mod] from phase [DEFAULT] in config [aaron-mod.mixins.json] FAILED during APPLY
at org.spongepowered.asm.mixin.transformer.MixinProcessor.handleMixinError(MixinProcessor.java:686) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.handleMixinApplyError(MixinProcessor.java:637) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:368) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:237) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:435) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:336) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.17.2.jar:?]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
at knot/net.minecraft.client.main.Main.main(Main.java:222) ~[minecraft-1.21.8-client.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:506) ~[fabric-loader-0.17.2.jar:?]
... 5 more
Caused by: org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException: @at("INVOKE") on net/minecraft/class_638::aaronMod$hideLightningFlashes with priority 1000 cannot inject into net/minecraft/class_638::method_23789()I merged by stfu.mixin.ClientWorldMixin with priority 1000 [INJECT_PREPARE Applicator Phase -> aaron-mod.mixins.json:ClientWorldMixin from mod aaron-mod -> Prepare Injections -> modifyExpressionValue$zzi000$aaron-mod$aaronMod$hideLightningFlashes(Z)Z -> Prepare -> -> { target: method_23789()I }]
at org.spongepowered.asm.mixin.injection.code.Injector.findTargetNodes(Injector.java:312) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.injection.code.Injector.find(Injector.java:248) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.injection.struct.InjectionInfo.prepare(InjectionInfo.java:475) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at knot/com.llamalad7.mixinextras.injector.ModifyExpressionValueInjectionInfo.prepare(ModifyExpressionValueInjectionInfo.java:25) ~[mixinextras-0.5.0-1f6627383f457848.jar:?]
at org.spongepowered.asm.mixin.transformer.MixinTargetContext.prepareInjections(MixinTargetContext.java:1407) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.prepareInjections(MixinApplicatorStandard.java:731) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.applyMixin(MixinApplicatorStandard.java:315) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinApplicatorStandard.apply(MixinApplicatorStandard.java:246) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.apply(TargetClassContext.java:437) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.TargetClassContext.applyMixins(TargetClassContext.java:418) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:352) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:237) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202) ~[sponge-mixin-0.16.3+mixin.0.8.7.jar:0.16.3+mixin.0.8.7]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:435) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:336) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:231) ~[fabric-loader-0.17.2.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119) ~[fabric-loader-0.17.2.jar:?]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
at knot/net.minecraft.client.main.Main.main(Main.java:222) ~[minecraft-1.21.8-client.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:506) ~[fabric-loader-0.17.2.jar:?]
... 5 more"

[AzureAaron]

It appears that they overwrite the getLightningTicksLeft method and erase Mojang's check for the sky flash setting which breaks what I am doing. I'm not sure that their patch is correct or that it even optimizes anything at all so I might see what I could do (if anything).