---- Minecraft Network Protocol Error Report ----
// Please insert The Internet CD #4

Time: 2026-01-18 12:39:05
Description: Packet handling error

java.util.NoSuchElementException: net.neoforged.neoforge.network.filters.VanillaConnectionNetworkFilter
	at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1103) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.DefaultChannelPipeline.remove(DefaultChannelPipeline.java:366) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[?:?] {}
	at TRANSFORMER/neoforge@21.11.34-beta/net.neoforged.neoforge.network.filters.NetworkFilters.cleanIfNecessary(NetworkFilters.java:63) ~[neoforge-21.11.34-beta-universal.jar:?] {}
	at TRANSFORMER/neoforge@21.11.34-beta/net.neoforged.neoforge.network.filters.NetworkFilters.injectIfNecessary(NetworkFilters.java:31) ~[neoforge-21.11.34-beta-universal.jar:?] {}
	at TRANSFORMER/neoforge@21.11.34-beta/net.neoforged.neoforge.client.network.registration.ClientNetworkRegistry.initializeOtherConnection(ClientNetworkRegistry.java:255) ~[neoforge-21.11.34-beta-universal.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.client.multiplayer.ClientConfigurationPacketListenerImpl.handleEnabledFeatures(ClientConfigurationPacketListenerImpl.java:99) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.network.protocol.configuration.ClientboundUpdateEnabledFeaturesPacket.handle(ClientboundUpdateEnabledFeaturesPacket.java:30) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.network.protocol.configuration.ClientboundUpdateEnabledFeaturesPacket.handle(ClientboundUpdateEnabledFeaturesPacket.java:11) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.network.Connection.genericsFtw(Connection.java:181) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.network.Connection.channelRead0(Connection.java:165) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.network.Connection.channelRead0(Connection.java:58) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.flow.FlowControlHandler.dequeue(FlowControlHandler.java:201) ~[netty-handler-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.flow.FlowControlHandler.channelRead(FlowControlHandler.java:163) ~[netty-handler-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:354) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:333) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:455) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:107) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:293) ~[netty-handler-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:354) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1429) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:794) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.handle(AbstractEpollChannel.java:482) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.EpollIoHandler$DefaultEpollIoRegistration.handle(EpollIoHandler.java:317) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.EpollIoHandler.processReady(EpollIoHandler.java:515) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.EpollIoHandler.run(EpollIoHandler.java:460) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.SingleThreadIoEventLoop.runIo(SingleThreadIoEventLoop.java:225) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:196) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1193) ~[netty-common-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.2.7.Final.jar:4.2.7.Final] {}
	at java.base/java.lang.Thread.run(Thread.java:1583) [?:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Netty Epoll IO #1
Stacktrace:
	at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1103) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.DefaultChannelPipeline.remove(DefaultChannelPipeline.java:366) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[?:?] {}
	at TRANSFORMER/neoforge@21.11.34-beta/net.neoforged.neoforge.network.filters.NetworkFilters.cleanIfNecessary(NetworkFilters.java:63) ~[neoforge-21.11.34-beta-universal.jar:?] {}
	at TRANSFORMER/neoforge@21.11.34-beta/net.neoforged.neoforge.network.filters.NetworkFilters.injectIfNecessary(NetworkFilters.java:31) ~[neoforge-21.11.34-beta-universal.jar:?] {}
	at TRANSFORMER/neoforge@21.11.34-beta/net.neoforged.neoforge.client.network.registration.ClientNetworkRegistry.initializeOtherConnection(ClientNetworkRegistry.java:255) ~[neoforge-21.11.34-beta-universal.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.client.multiplayer.ClientConfigurationPacketListenerImpl.handleEnabledFeatures(ClientConfigurationPacketListenerImpl.java:99) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
-- Connection --
Details:
	Protocol: configuration
	Flow: CLIENTBOUND
	Is Local: false
	Server type: OTHER
	Server brand: vanilla
Stacktrace:
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.network.PacketListener.fillCrashReport(PacketListener.java:33) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.network.protocol.PacketUtils.fillCrashReport(PacketUtils.java:47) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.client.multiplayer.ClientCommonPacketListenerImpl.storeDisconnectionReport(ClientCommonPacketListenerImpl.java:138) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.client.multiplayer.ClientCommonPacketListenerImpl.createDisconnectionInfo(ClientCommonPacketListenerImpl.java:131) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at TRANSFORMER/minecraft@1.21.11/net.minecraft.network.Connection.exceptionCaught(Connection.java:131) ~[minecraft-client-patched-21.11.34-beta.jar:?] {}
	at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:289) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:359) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.flow.FlowControlHandler.dequeue(FlowControlHandler.java:201) ~[netty-handler-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.flow.FlowControlHandler.channelRead(FlowControlHandler.java:163) ~[netty-handler-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:354) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:333) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:455) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:107) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:293) ~[netty-handler-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:354) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1429) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:794) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.handle(AbstractEpollChannel.java:482) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.EpollIoHandler$DefaultEpollIoRegistration.handle(EpollIoHandler.java:317) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.EpollIoHandler.processReady(EpollIoHandler.java:515) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.epoll.EpollIoHandler.run(EpollIoHandler.java:460) ~[netty-transport-classes-epoll-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.SingleThreadIoEventLoop.runIo(SingleThreadIoEventLoop.java:225) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:196) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1193) ~[netty-common-4.2.7.Final.jar:4.2.7.Final] {}
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.2.7.Final.jar:4.2.7.Final] {}
	at java.base/java.lang.Thread.run(Thread.java:1583) [?:?] {}


-- System Details --
Details:
	Minecraft Version: 1.21.11
	Minecraft Version ID: 1.21.11
	Operating System: Linux (amd64) version 6.16.9-1.0.14.sr20250901-default
	Java Version: 21.0.9, N/A
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Oracle Corporation
	Memory: 372456440 bytes (355 MiB) / 704643072 bytes (672 MiB) up to 2147483648 bytes (2048 MiB)
	CPUs: 4
	Processor Vendor: GenuineIntel
	Processor Name: Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
	Identifier: Intel64 Family 6 Model 142 Stepping 9
	Microarchitecture: Amber Lake
	Frequency (GHz): 2.50
	Number of physical packages: 1
	Number of physical CPUs: 2
	Number of logical CPUs: 4
	Graphics card #0 name: HD Graphics 620
	Graphics card #0 vendor: Intel Corporation (0x8086)
	Graphics card #0 VRAM (MiB): 256.00
	Graphics card #0 deviceId: 0x5916
	Graphics card #0 versionInfo: unknown
	Graphics card #1 name: GM108M [GeForce 940MX]
	Graphics card #1 vendor: NVIDIA Corporation (0x10de)
	Graphics card #1 VRAM (MiB): 288.00
	Graphics card #1 deviceId: 0x134d
	Graphics card #1 versionInfo: unknown
	Virtual memory max (MiB): 3922.97
	Virtual memory used (MiB): 5617.16
	Swap memory total (MiB): 0.00
	Swap memory used (MiB): 0.00
	Space in storage for jna.tmpdir (MiB): available: 14063.36, total: 63695.57
	Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 14063.36, total: 63695.57
	Space in storage for io.netty.native.workdir (MiB): available: 14063.36, total: 63695.57
	Space in storage for java.io.tmpdir (MiB): available: 3873.18, total: 3922.98
	Space in storage for workdir (MiB): available: 14063.36, total: 63695.57
	JVM Flags: 18 total; -Xmx2048m -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions -XX:+UseG1GC -XX:G1MixedGCCountTarget=5 -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32m -XX:-OmitStackTraceInFastThrow -XX:-DontCompileHugeMethods -XX:MaxNodeLimit=240000 -XX:NodeLimitFudgeFactor=8000 -XX:TieredCompileTaskTimeout=10000 -XX:ReservedCodeCacheSize=400M -XX:NonNMethodCodeHeapSize=12M -XX:ProfiledCodeHeapSize=194M -XX:NmethodSweepActivity=1
	Debug Flags: 0 total; 
	Class Processors: 
		00.00%: neoforge:computing_frames (marker)
		00.00%: neoforge:runtime_enum_extender
		05.10%: neoforge:access_transformer
		00.06%: neoforge:mixin
		00.00%: neoforge:simple_processors_default (marker)
		00.01%: neoforge.coremods:field_to_getter.net.minecraft.world.level.biome.biome
		00.01%: neoforge.coremods:field_to_getter.net.minecraft.world.level.block.flowerpotblock
		00.01%: neoforge.coremods:field_to_getter.net.minecraft.world.level.levelgen.structure.structure
		00.26%: neoforge.coremods:method_redirector
	Mod List: 
		minecraft-client-patched-21.11.34-beta.jar        |Minecraft                     |minecraft                     |1.21.11             |Manifest: f96a729f7141b3860a50ce244231ca80eecb1b411d0ce45c09975f7d4c527d81
		neoforge-21.11.34-beta-universal.jar              |NeoForge                      |neoforge                      |21.11.34-beta       |Manifest: 6434707cfcf06852d2fa51e28f5db7f85becf2d12de36a7f074ba2890f27e2a8
	Crash Report UUID: 08af2ac1-53f2-4881-9f55-1c19b00dc551
	FML: 10.0.36
	NeoForge: 21.11.34-beta