---- Minecraft Crash Report ---- // Don't do that. Time: 4/14/26 8:23 PM Description: Initializing game java.nio.file.FileSystemNotFoundException: \curseforge\minecraft\Instances\Better MC [FORGE] BMC1\shaderpacks\Pyvtron V1.3.2.zip at com.sun.nio.zipfs.ZipFileSystem.(ZipFileSystem.java:120) ~[zipfs.jar:1.8.0_51] {} at com.sun.nio.zipfs.ZipFileSystemProvider.newFileSystem(ZipFileSystemProvider.java:139) ~[zipfs.jar:1.8.0_51] {re:classloading,re:classloading,re:classloading} at java.nio.file.FileSystems.newFileSystem(FileSystems.java:390) ~[?:1.8.0_51] {} at net.coderbot.iris.Iris.isValidShaderpack(Iris.java:495) ~[?:?] {re:mixin,re:classloading} at net.coderbot.iris.Iris.loadExternalShaderpack(Iris.java:287) ~[?:?] {re:mixin,re:classloading} at net.coderbot.iris.Iris.loadShaderpack(Iris.java:267) ~[?:?] {re:mixin,re:classloading} at net.coderbot.iris.Iris.onRenderSystemInit(Iris.java:175) ~[?:?] {re:mixin,re:classloading} at com.mojang.blaze3d.systems.RenderSystem.handler$cak000$iris$onRendererInit(SourceFile:1519) ~[?:?] {re:mixin,re:classloading,pl:mixin:APP:mixins.oculus.json:MixinRenderSystem,pl:mixin:A} at com.mojang.blaze3d.systems.RenderSystem.initRenderer(SourceFile:1066) ~[?:?] {re:mixin,re:classloading,pl:mixin:APP:mixins.oculus.json:MixinRenderSystem,pl:mixin:A} at net.minecraft.client.Minecraft.(Minecraft.java:433) [?:?] {re:mixin,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick_render_call,xf:fml:xaerominimap:xaero_minecraftclient,xf:fml:xaeroworldmap:xaero_wm_minecraftclient,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick_render_call,xf:fml:xaerominimap:xaero_minecraftclient,xf:fml:xaeroworldmap:xaero_wm_minecraftclient,pl:mixin:APP:modernfix-common.mixins.json:bugfix.concurrency.MinecraftMixin,pl:mixin:APP:modernfix-common.mixins.json:bugfix.world_leaks.MinecraftMixin,pl:mixin:APP:modernfix-common.mixins.json:perf.dedicated_reload_executor.MinecraftMixin,pl:mixin:APP:modernfix-common.mixins.json:feature.measure_time.MinecraftMixin,pl:mixin:APP:modernfix-forge.mixins.json:perf.blast_search_trees.MinecraftMixin,pl:mixin:APP:modernfix-forge.mixins.json:perf.skip_first_datapack_reload.MinecraftMixin,pl:mixin:APP:modernfix-forge.mixins.json:feature.measure_time.MinecraftMixin_Forge,pl:mixin:APP:resourcepackoverrides.forge.mixins.json:client.MinecraftMixin,pl:mixin:APP:randompatches.mixins.json:client.MinecraftMixin,pl:mixin:APP:crash_assistant.mixins.json:MinecraftMixin,pl:mixin:APP:betterendforge.mixins.json:client.MinecraftMixin,pl:mixin:APP:fallingleaves.mixins.json:MinecraftClientMixin,pl:mixin:APP:notenoughanimations.mixins.json:LivingRenderStateMixin,pl:mixin:APP:ryoamiclights.common.mixins.json:MinecraftClientMixin,pl:mixin:APP:mixins.oculus.json:MixinMinecraft_PipelineManagement,pl:mixin:APP:obsidianui.forge.mixins.json:MinecraftClientMixin,pl:mixin:APP:konkrete.mixin.json:client.MixinMinecraft,pl:mixin:APP:entity_texture_features-common.mixins.json:cacheReloaders.MixinMinecraftClient,pl:mixin:APP:embeddiumextras.mixins.json:frame_counter.GpuUsageMixin,pl:mixin:APP:embeddiumextras.mixins.json:frame_counter.MinecraftAccessor,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:world-host.mixins.json:MinecraftAccessor,pl:mixin:APP:world-host.mixins.json:MixinMinecraft,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:outer_end.mixins.json:BackgroundMusicMixin,pl:mixin:APP:skinlayers3d.mixins.json:EMFModelPartMixin,pl:mixin:APP:platform.mixins.json:client.MinecraftMixin,pl:mixin:APP:platform-common.mixins.json:client.MinecraftMixin,pl:mixin:APP:iceberg.mixins.json:MinecraftMixin,pl:mixin:APP:fancymenu.general.mixin.json:IMixinMinecraft,pl:mixin:APP:fancymenu.general.mixin.json:MixinMinecraft,pl:mixin:APP:drippyloadingscreen.mixin.json:MixinMinecraft,pl:mixin:APP:embeddium.mixins.json:features.options.MixinMinecraftClient,pl:mixin:APP:embeddium.mixins.json:features.gui.fast_fps_pie.MixinMinecraftClient,pl:mixin:APP:fabrication.mixins.json:g_weird_tweaks.use_items_while_riding.MixinMinecraftClient,pl:mixin:A,pl:runtimedistcleaner:A} at net.minecraft.client.main.Main.main(Main.java:149) [?:?] {re:classloading,pl:runtimedistcleaner:A} at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {} at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {} at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {} at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {re:mixin} at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:37) [forge-1.16.5-36.2.42.jar:36.2] {} at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$544/12897515.call(Unknown Source) [forge-1.16.5-36.2.42.jar:36.2] {} at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.1.3.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.1.3.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.1.3.jar:?] {} at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.1.3.jar:?] {re:classloading} at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {re:classloading} A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Render thread Stacktrace: at com.sun.nio.zipfs.ZipFileSystem.(ZipFileSystem.java:120) ~[zipfs.jar:1.8.0_51] {} at com.sun.nio.zipfs.ZipFileSystemProvider.newFileSystem(ZipFileSystemProvider.java:139) ~[zipfs.jar:1.8.0_51] {re:classloading,re:classloading,re:classloading,re:classloading} at java.nio.file.FileSystems.newFileSystem(FileSystems.java:390) ~[?:1.8.0_51] {} at net.coderbot.iris.Iris.isValidShaderpack(Iris.java:495) ~[?:?] {re:mixin,re:classloading} at net.coderbot.iris.Iris.loadExternalShaderpack(Iris.java:287) ~[?:?] {re:mixin,re:classloading} at net.coderbot.iris.Iris.loadShaderpack(Iris.java:267) ~[?:?] {re:mixin,re:classloading} at net.coderbot.iris.Iris.onRenderSystemInit(Iris.java:175) ~[?:?] {re:mixin,re:classloading} at com.mojang.blaze3d.systems.RenderSystem.handler$cak000$iris$onRendererInit(SourceFile:1519) ~[?:?] {re:mixin,re:classloading,pl:mixin:APP:mixins.oculus.json:MixinRenderSystem,pl:mixin:A} at com.mojang.blaze3d.systems.RenderSystem.initRenderer(SourceFile:1066) ~[?:?] {re:mixin,re:classloading,pl:mixin:APP:mixins.oculus.json:MixinRenderSystem,pl:mixin:A} at net.minecraft.client.Minecraft.(Minecraft.java:433) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick_render_call,xf:fml:xaerominimap:xaero_minecraftclient,xf:fml:xaeroworldmap:xaero_wm_minecraftclient,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick,xf:fml:xaeroworldmap:xaero_wm_minecraft_runtick_render_call,xf:fml:xaerominimap:xaero_minecraftclient,xf:fml:xaeroworldmap:xaero_wm_minecraftclient,pl:mixin:APP:modernfix-common.mixins.json:bugfix.concurrency.MinecraftMixin,pl:mixin:APP:modernfix-common.mixins.json:bugfix.world_leaks.MinecraftMixin,pl:mixin:APP:modernfix-common.mixins.json:perf.dedicated_reload_executor.MinecraftMixin,pl:mixin:APP:modernfix-common.mixins.json:feature.measure_time.MinecraftMixin,pl:mixin:APP:modernfix-forge.mixins.json:perf.blast_search_trees.MinecraftMixin,pl:mixin:APP:modernfix-forge.mixins.json:perf.skip_first_datapack_reload.MinecraftMixin,pl:mixin:APP:modernfix-forge.mixins.json:feature.measure_time.MinecraftMixin_Forge,pl:mixin:APP:resourcepackoverrides.forge.mixins.json:client.MinecraftMixin,pl:mixin:APP:randompatches.mixins.json:client.MinecraftMixin,pl:mixin:APP:crash_assistant.mixins.json:MinecraftMixin,pl:mixin:APP:betterendforge.mixins.json:client.MinecraftMixin,pl:mixin:APP:fallingleaves.mixins.json:MinecraftClientMixin,pl:mixin:APP:notenoughanimations.mixins.json:LivingRenderStateMixin,pl:mixin:APP:ryoamiclights.common.mixins.json:MinecraftClientMixin,pl:mixin:APP:mixins.oculus.json:MixinMinecraft_PipelineManagement,pl:mixin:APP:obsidianui.forge.mixins.json:MinecraftClientMixin,pl:mixin:APP:konkrete.mixin.json:client.MixinMinecraft,pl:mixin:APP:entity_texture_features-common.mixins.json:cacheReloaders.MixinMinecraftClient,pl:mixin:APP:embeddiumextras.mixins.json:frame_counter.GpuUsageMixin,pl:mixin:APP:embeddiumextras.mixins.json:frame_counter.MinecraftAccessor,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:world-host.mixins.json:MinecraftAccessor,pl:mixin:APP:world-host.mixins.json:MixinMinecraft,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:outer_end.mixins.json:BackgroundMusicMixin,pl:mixin:APP:skinlayers3d.mixins.json:EMFModelPartMixin,pl:mixin:APP:platform.mixins.json:client.MinecraftMixin,pl:mixin:APP:platform-common.mixins.json:client.MinecraftMixin,pl:mixin:APP:iceberg.mixins.json:MinecraftMixin,pl:mixin:APP:fancymenu.general.mixin.json:IMixinMinecraft,pl:mixin:APP:fancymenu.general.mixin.json:MixinMinecraft,pl:mixin:APP:drippyloadingscreen.mixin.json:MixinMinecraft,pl:mixin:APP:embeddium.mixins.json:features.options.MixinMinecraftClient,pl:mixin:APP:embeddium.mixins.json:features.gui.fast_fps_pie.MixinMinecraftClient,pl:mixin:APP:fabrication.mixins.json:g_weird_tweaks.use_items_while_riding.MixinMinecraftClient,pl:mixin:A,pl:runtimedistcleaner:A} Mixins in Heaven: com.mojang.blaze3d.systems.RenderSystem: net.coderbot.iris.mixin.MixinRenderSystem (mixins.oculus.json) net.minecraft.client.Minecraft: org.thinkingstudio.ryoamiclights.mixin.MinecraftClientMixin (ryoamiclights.common.mixins.json) de.keksuccino.fancymenu.mixin.client.MixinMinecraft (fancymenu.general.mixin.json) blueduck.outerend.mixin.BackgroundMusicMixin (outer_end.mixins.json) fuzs.resourcepackoverrides.mixin.client.MinecraftMixin (resourcepackoverrides.forge.mixins.json) org.embeddedt.modernfix.common.mixin.bugfix.concurrency.MinecraftMixin (modernfix-common.mixins.json) me.jellysquid.mods.sodium.mixin.features.gui.fast_fps_pie.MixinMinecraftClient (embeddium.mixins.json) com.anthonyhilyard.iceberg.mixin.MinecraftMixin (iceberg.mixins.json) de.keksuccino.konkrete.mixin.client.MixinMinecraft (konkrete.mixin.json) org.embeddedt.modernfix.common.mixin.feature.measure_time.MinecraftMixin (modernfix-common.mixins.json) dev.tr7zw.skinlayers.mixin.EMFModelPartMixin (skinlayers3d.mixins.json) org.embeddedt.modernfix.forge.mixin.feature.measure_time.MinecraftMixin_Forge (modernfix-forge.mixins.json) net.coderbot.iris.mixin.MixinMinecraft_PipelineManagement (mixins.oculus.json) dev.kostromdan.mods.crash_assistant.common.mixin.MinecraftMixin (crash_assistant.mixins.json) org.embeddedt.modernfix.common.mixin.perf.dedicated_reload_executor.MinecraftMixin (modernfix-common.mixins.json) com.teampotato.embeddiumextras.mixins.frame_counter.MinecraftAccessor (embeddiumextras.mixins.json) org.embeddedt.modernfix.common.mixin.bugfix.world_leaks.MinecraftMixin (modernfix-common.mixins.json) traben.entity_texture_features.mixin.cacheReloaders.MixinMinecraftClient (entity_texture_features-common.mixins.json) io.github.gaming32.worldhost.mixin.MixinMinecraft (world-host.mixins.json) de.keksuccino.fancymenu.mixin.client.IMixinMinecraft (fancymenu.general.mixin.json) com.therandomlabs.randompatches.mixin.client.MinecraftMixin (randompatches.mixins.json) com.unascribed.fabrication.mixin.g_weird_tweaks.use_items_while_riding.MixinMinecraftClient (fabrication.mixins.json) mod.beethoven92.betterendforge.mixin.client.MinecraftMixin (betterendforge.mixins.json) com.teampotato.embeddiumextras.mixins.frame_counter.GpuUsageMixin (embeddiumextras.mixins.json) com.minecraftabnormals.abnormals_core.core.mixin.client.MinecraftMixin (abnormals_core.mixins.json) dev.tr7zw.notenoughanimations.mixins.LivingRenderStateMixin (notenoughanimations.mixins.json) me.jellysquid.mods.sodium.mixin.features.options.MixinMinecraftClient (embeddium.mixins.json) com.blackgear.platform.core.mixin.forge.client.MinecraftMixin (platform.mixins.json) org.embeddedt.modernfix.forge.mixin.perf.blast_search_trees.MinecraftMixin (modernfix-forge.mixins.json) me.shedaniel.architectury.mixin.forge.MixinMinecraft (architectury.mixins.json) org.embeddedt.modernfix.forge.mixin.perf.skip_first_datapack_reload.MinecraftMixin (modernfix-forge.mixins.json) io.github.gaming32.worldhost.mixin.MinecraftAccessor (world-host.mixins.json) de.keksuccino.drippyloadingscreen.mixin.client.MixinMinecraft (drippyloadingscreen.mixin.json) com.blackgear.platform.core.mixin.client.MinecraftMixin (platform-common.mixins.json) de.cheaterpaul.fallingleaves.mixin.MinecraftClientMixin (fallingleaves.mixins.json) org.thinkingstudio.obsidianui.forge.mixin.MinecraftClientMixin (obsidianui.forge.mixins.json) -- Initialization -- Details: Stacktrace: at net.minecraft.client.main.Main.main(Main.java:149) [?:?] {re:classloading,pl:runtimedistcleaner:A} at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {} at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {} at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {} at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {re:mixin} at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:37) [forge-1.16.5-36.2.42.jar:36.2] {} at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$544/12897515.call(Unknown Source) [forge-1.16.5-36.2.42.jar:36.2] {} at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.1.3.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.1.3.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.1.3.jar:?] {} at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.1.3.jar:?] {re:classloading} at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {re:classloading} Mixins in Heaven: None found -- System Details -- Details: Minecraft Version: 1.16.5 Minecraft Version ID: 1.16.5 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1445397096 bytes (1378 MB) / 1835532288 bytes (1750 MB) up to 5100273664 bytes (4864 MB) CPUs: 22 JVM Flags: 4 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx5472m -Xms256m Launched Version: forge-36.2.42 Backend library: LWJGL version 3.2.2 build 10 Backend API: Intel(R) Arc(TM) Graphics GL version 4.6.0 - Build 32.0.101.6314, Intel GL Caps: Using framebuffer using OpenGL 3.0 Using VBOs: Yes Is Modded: Definitely; Client brand changed to 'forge' Type: Client (map_client.txt) CPU: 22x Intel(R) Core(TM) Ultra 7 155H