Client entity id not set when translating from 1.21.4 to 1.20.6 (v1_21to1_21_2)

1.When “Ignore packet conversion errors” is disabled, the error shown in the figure below appears (Log 1).
<img width="1792" height="232" alt="Image" src="https://github.com/user-attachments/assets/b843d0d9-5f76-4c3f-95ca-a3e904e98225" />
2.Stuck on the “Join World...” screen and the console repeatedly displays the following log after enabling "Ignore packet translation errors"(Log 2).

[latest.log](https://github.com/user-attachments/files/28912388/latest.log)

## Log 1
```
[20:35:06] [Netty NIO Client IO #1/WARN] (ViaVersion) ERROR IN Protocol1_21To1_21_2 IN REMAP OF SET_PASSENGERS (0x5F)
[20:35:06] [Netty NIO Client IO #1/ERROR] (ViaProxy) Caught unhandled netty exception

io.netty.handler.codec.DecoderException: com.viaversion.viaversion.exception.InformativeException: Please report the full error (!) from the console on the Via support Discord or open an issue on the relevant GitHub repository.
Source 0: com.viaversion.viaversion.protocols.v1_21to1_21_2.rewriter.EntityPacketRewriter1_21_2$$Lambda$1612/0x00000008010a3c70
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:515)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at com.viaversion.viaversion.platform.ViaCodecHandler.channelRead(ViaCodecHandler.java:87)
        at net.raphimc.viaproxy.protocoltranslator.impl.ViaProxyViaCodec.channelRead(ViaProxyViaCodec.java:41)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:325)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.flow.FlowControlHandler.dequeue(FlowControlHandler.java:201)
        at io.netty.handler.flow.FlowControlHandler.channelRead(FlowControlHandler.java:163)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:348)
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:470)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:325)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1429)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:176)
        at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.handle(AbstractNioChannel.java:445)
        at io.netty.channel.nio.NioIoHandler$DefaultNioRegistration.handle(NioIoHandler.java:388)
        at io.netty.channel.nio.NioIoHandler.processSelectedKey(NioIoHandler.java:596)
        at io.netty.channel.nio.NioIoHandler.processSelectedKeysOptimized(NioIoHandler.java:571)
        at io.netty.channel.nio.NioIoHandler.processSelectedKeys(NioIoHandler.java:512)
        at io.netty.channel.nio.NioIoHandler.run(NioIoHandler.java:484)
        at io.netty.channel.SingleThreadIoEventLoop.runIo(SingleThreadIoEventLoop.java:225)
        at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:196)
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195)
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: com.viaversion.viaversion.exception.InformativeException: Please report the full error (!) from the console on the Via support Discord or open an issue on the relevant GitHub repository.
Source 0: com.viaversion.viaversion.protocols.v1_21to1_21_2.rewriter.EntityPacketRewriter1_21_2$$Lambda$1612/0x00000008010a3c70
Caused by: java.lang.IllegalStateException: Client entity id not set
        at com.viaversion.viaversion.data.entity.EntityTrackerBase.clientEntityId(EntityTrackerBase.java:128)
        at com.viaversion.viaversion.protocols.v1_21to1_21_2.rewriter.EntityPacketRewriter1_21_2.lambda$registerPackets$4(EntityPacketRewriter1_21_2.java:284)
        at com.viaversion.viaversion.api.protocol.AbstractProtocol.transform(AbstractProtocol.java:455)
        at com.viaversion.viaversion.protocol.packet.PacketWrapperImpl.apply(PacketWrapperImpl.java:452)
        at com.viaversion.viaversion.protocol.ProtocolPipelineImpl.transform(ProtocolPipelineImpl.java:110)
        at com.viaversion.viaversion.connection.UserConnectionImpl.transform(UserConnectionImpl.java:359)
        at com.viaversion.viaversion.connection.UserConnectionImpl.transformClientbound(UserConnectionImpl.java:335)
        at com.viaversion.viaversion.api.connection.UserConnection.transformIncoming(UserConnection.java:285)
        at com.viaversion.viaversion.platform.ViaCodecHandler.decode(ViaCodecHandler.java:63)
        at io.netty.handler.codec.ByteToMessageCodec$1.decode(ByteToMessageCodec.java:42)
        at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:545)
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:484)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at com.viaversion.viaversion.platform.ViaCodecHandler.channelRead(ViaCodecHandler.java:87)
        at net.raphimc.viaproxy.protocoltranslator.impl.ViaProxyViaCodec.channelRead(ViaProxyViaCodec.java:41)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:325)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.flow.FlowControlHandler.dequeue(FlowControlHandler.java:201)
        at io.netty.handler.flow.FlowControlHandler.channelRead(FlowControlHandler.java:163)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:348)
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:470)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:325)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1429)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:176)
        at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.handle(AbstractNioChannel.java:445)
        at io.netty.channel.nio.NioIoHandler$DefaultNioRegistration.handle(NioIoHandler.java:388)
        at io.netty.channel.nio.NioIoHandler.processSelectedKey(NioIoHandler.java:596)
        at io.netty.channel.nio.NioIoHandler.processSelectedKeysOptimized(NioIoHandler.java:571)
        at io.netty.channel.nio.NioIoHandler.processSelectedKeys(NioIoHandler.java:512)
        at io.netty.channel.nio.NioIoHandler.run(NioIoHandler.java:484)
        at io.netty.channel.SingleThreadIoEventLoop.runIo(SingleThreadIoEventLoop.java:225)
        at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:196)
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195)
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at java.base/java.lang.Thread.run(Thread.java:833)
[20:35:06] [Netty NIO Client IO #1/INFO] (ViaProxy) [PROXY KICK] (127.0.0.1:58068 | Mauoivin) An unhandled error occurred in your connection and it has been closed.
Error details for report:
InformativeException: Please report the full error (!) from the console on the Via support Discord or open an issue on the relevant GitHub repository.
Source 0: com.viaversion.viaversion.protocols.v1_21to1_21_2.rewriter.EntityPacketRewriter1_21_2$$Lambda$1612/0x00000008010a3c70 Caused by
IllegalStateException: Client entity id not set
[20:35:06] [Netty NIO Client IO #1/INFO] (ViaProxy) [DISCONNECT] (127.0.0.1:58068 | Mauoivin) Connection closed
```
## Log 2
```
[20:10:10] [Netty NIO Client IO #4/WARN] (ViaVersion) ERROR IN Protocol1_21To1_21_2 IN REMAP OF UPDATE_ATTRIBUTES (0x75)
[20:10:10] [Netty NIO Client IO #4/ERROR] (ViaProxy) ProtocolTranslator packet translation error occurred

io.netty.handler.codec.DecoderException: com.viaversion.viaversion.exception.InformativeException: Please report the full error (!) from the console on the Via support Discord or open an issue on the relevant GitHub repository.
Source 0: com.viaversion.viaversion.api.protocol.remapper.PacketHandler$$Lambda$967/0x0000000800fe0a20
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:515)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at com.viaversion.viaversion.platform.ViaCodecHandler.channelRead(ViaCodecHandler.java:87)
        at net.raphimc.viaproxy.protocoltranslator.impl.ViaProxyViaCodec.channelRead(ViaProxyViaCodec.java:36)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:325)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.flow.FlowControlHandler.dequeue(FlowControlHandler.java:201)
        at io.netty.handler.flow.FlowControlHandler.channelRead(FlowControlHandler.java:163)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:348)
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:470)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:325)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1429)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:176)
        at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.handle(AbstractNioChannel.java:445)
        at io.netty.channel.nio.NioIoHandler$DefaultNioRegistration.handle(NioIoHandler.java:388)
        at io.netty.channel.nio.NioIoHandler.processSelectedKey(NioIoHandler.java:596)
        at io.netty.channel.nio.NioIoHandler.processSelectedKeysOptimized(NioIoHandler.java:571)
        at io.netty.channel.nio.NioIoHandler.processSelectedKeys(NioIoHandler.java:512)
        at io.netty.channel.nio.NioIoHandler.run(NioIoHandler.java:484)
        at io.netty.channel.SingleThreadIoEventLoop.runIo(SingleThreadIoEventLoop.java:225)
        at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:196)
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195)
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: com.viaversion.viaversion.exception.InformativeException: Please report the full error (!) from the console on the Via support Discord or open an issue on the relevant GitHub repository.
Source 0: com.viaversion.viaversion.api.protocol.remapper.PacketHandler$$Lambda$967/0x0000000800fe0a20
Caused by: java.lang.IllegalStateException: Client entity id not set
        at com.viaversion.viaversion.data.entity.EntityTrackerBase.clientEntityId(EntityTrackerBase.java:128)
        at com.viaversion.viaversion.protocols.v1_21to1_21_2.Protocol1_21To1_21_2.lambda$registerPackets$4(Protocol1_21To1_21_2.java:152)
        at com.viaversion.viaversion.api.protocol.remapper.PacketHandler.lambda$then$0(PacketHandler.java:47)
        at com.viaversion.viaversion.api.protocol.AbstractProtocol.transform(AbstractProtocol.java:455)
        at com.viaversion.viaversion.protocol.packet.PacketWrapperImpl.apply(PacketWrapperImpl.java:452)
        at com.viaversion.viaversion.protocol.ProtocolPipelineImpl.transform(ProtocolPipelineImpl.java:110)
        at com.viaversion.viaversion.connection.UserConnectionImpl.transform(UserConnectionImpl.java:359)
        at com.viaversion.viaversion.connection.UserConnectionImpl.transformClientbound(UserConnectionImpl.java:335)
        at com.viaversion.viaversion.api.connection.UserConnection.transformIncoming(UserConnection.java:285)
        at com.viaversion.viaversion.platform.ViaCodecHandler.decode(ViaCodecHandler.java:63)
        at io.netty.handler.codec.ByteToMessageCodec$1.decode(ByteToMessageCodec.java:42)
        at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:545)
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:484)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at com.viaversion.viaversion.platform.ViaCodecHandler.channelRead(ViaCodecHandler.java:87)
        at net.raphimc.viaproxy.protocoltranslator.impl.ViaProxyViaCodec.channelRead(ViaProxyViaCodec.java:36)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:325)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.flow.FlowControlHandler.dequeue(FlowControlHandler.java:201)
        at io.netty.handler.flow.FlowControlHandler.channelRead(FlowControlHandler.java:163)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:348)
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:470)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:361)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:325)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:355)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1429)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:176)
        at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.handle(AbstractNioChannel.java:445)
        at io.netty.channel.nio.NioIoHandler$DefaultNioRegistration.handle(NioIoHandler.java:388)
        at io.netty.channel.nio.NioIoHandler.processSelectedKey(NioIoHandler.java:596)
        at io.netty.channel.nio.NioIoHandler.processSelectedKeysOptimized(NioIoHandler.java:571)
        at io.netty.channel.nio.NioIoHandler.processSelectedKeys(NioIoHandler.java:512)
        at io.netty.channel.nio.NioIoHandler.run(NioIoHandler.java:484)
        at io.netty.channel.SingleThreadIoEventLoop.runIo(SingleThreadIoEventLoop.java:225)
        at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:196)
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195)
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at java.base/java.lang.Thread.run(Thread.java:833)
```

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Client entity id not set when translating from 1.21.4 to 1.20.6 (v1_21to1_21_2) #698

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Uh oh!

Client entity id not set when translating from 1.21.4 to 1.20.6 (v1_21to1_21_2) #698

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