magic items in the backpack causes disconnected kicking out.

[candy999]

Describe the bug
Installing the magic plugin in purpur and obtaining magic items in the backpack causes disconnected kicking out.

To Reproduce
Steps to reproduce the behavior:

1. purpur plugin https://www.spigotmc.org/resources/magic.1056/
2. "/wand" to get magic items
3. open backpack

Expected behavior

Screenshots
https://youtu.be/UusuxAP6Hew

Runtime info (please complete the following information):

• Minecraft version: 1.19.3
• Mod version: raknetify-velocity-0.1.0+alpha.5.54-all.jar
• Mod branch:
  [12:29:36 INFO]: Velocity 3.2.0-SNAPSHOT (git-e0e156a4-b228) [12:29:36 INFO]: Copyright 2018-2021 Velocity Contributors. Velocity is licensed under the terms of the GNU General Public License v3. [12:29:36 INFO]: velocitypowered.com - GitHub

Crash reports / logs
[12:10:39 INFO]: [connected player] CandySister (/111.243.21.138:55240) has connected [12:10:39 INFO] [raknetify]: Preventing vanilla compression as streaming compression is enabled [12:10:39 INFO] [raknetify]: Preventing vanilla compression as streaming compression is enabled [12:10:39 INFO] [raknetify]: Raknetify: CandySister logged in via RakNet, mtu 1398 [12:10:39 INFO]: [server connection] CandySister -> MineCandy has connected [12:10:42 ERROR]: [server connection] CandySister -> MineCandy: exception encountered in com.velocitypowered.proxy .connection.backend.BackendPlaySessionHandler@59304229 io.netty.handler.codec.EncoderException: java.lang.IllegalArgumentException: source has multiple backing buffers at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:125) ~[velocity-3.2.0-SNAPS HOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:881) ~[v elocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:863) ~[ve locity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:113) ~[velocity-3.2.0 -SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:881) ~[v elocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:863) ~[ve locity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:120) ~[velocity-3.2.0-SNAPS HOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:881) ~[v elocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:9 40) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:966) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:934) ~[ velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1020) ~[velocity-3.2. 0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:311) ~[velocity-3.2.0-SNAPSHOT-228. jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.velocitypowered.proxy.connection.MinecraftConnection.write(MinecraftConnection.java:220) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.velocitypowered.proxy.connection.client.ClientPlaySessionHandler.handleUnknown(ClientPlaySessionHan dler.java:410) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.velocitypowered.proxy.connection.MinecraftConnection.channelRead(MinecraftConnection.java:151) ~[ve locity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:93) ~[veloc ity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.ishland.raknetify.velocity.connection.RakNetVelocityChannelEventListener.channelRead(RakNetVelocity ChannelEventListener.java:83) ~[?:?] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.tryDecode(MinecraftDecoder.java:78) ~[velocit y-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.channelRead(MinecraftDecoder.java:61) ~[veloc ity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.ishland.raknetify.common.connection.FrameDataBlocker.channelRead(FrameDataBlocker.java:42) ~[?:?] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) ~[velocity-3.2 .0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.ishland.raknetify.common.connection.MultiChannelingStreamingCompression.channelRead(MultiChanneling StreamingCompression.java:166) ~[?:?] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.ishland.raknetify.common.connection.MultiChannellingEncryption.channelRead(MultiChannellingEncrypti on.java:100) ~[?:?] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[vel ocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440 ) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61) ~[velo city-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:425) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) ~[velocity-3.2.0 -SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167) ~[velocity-3 .2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) ~[ve locity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:569) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SN APSHOT (git-e0e156a4-b228)] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[velocity -3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[velocity-3.2.0-SNAPSHOT-228 .jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[velocity-3.2.0- SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at java.lang.Thread.run(Thread.java:1589) ~[?:?] Caused by: java.lang.IllegalArgumentException: source has multiple backing buffers at com.google.common.base.Preconditions.checkArgument(Preconditions.java:142) ~[velocity-3.2.0-SNAPSHOT-22 8.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.velocitypowered.natives.compression.JavaVelocityCompressor.deflate(JavaVelocityCompressor.java:86) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.velocitypowered.proxy.protocol.netty.MinecraftCompressorAndLengthEncoder.handleCompressed(Minecraft CompressorAndLengthEncoder.java:66) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.velocitypowered.proxy.protocol.netty.MinecraftCompressorAndLengthEncoder.encode(MinecraftCompressor AndLengthEncoder.java:52) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at com.velocitypowered.proxy.protocol.netty.MinecraftCompressorAndLengthEncoder.encode(MinecraftCompressor AndLengthEncoder.java:33) ~[velocity-3.2.0-SNAPSHOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) ~[velocity-3.2.0-SNAPS HOT-228.jar:3.2.0-SNAPSHOT (git-e0e156a4-b228)] ... 65 more [12:10:42 ERROR]: io.netty.handler.codec.EncoderException: java.lang.IllegalArgumentException: source has multiple backing buffers [12:10:42 ERROR]: at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:125) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerConte xt.java:881) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContex t.java:863) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java :968) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java :856) [12:10:42 ERROR]: at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:113) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerConte xt.java:881) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContex t.java:863) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java :968) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java :856) [12:10:42 ERROR]: at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:120) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerConte xt.java:881) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandl erContext.java:940) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java :966) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerCont ext.java:934) [12:10:42 ERROR]: at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1020) [12:10:42 ERROR]: at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:311) [12:10:42 ERROR]: at com.velocitypowered.proxy.connection.MinecraftConnection.write(MinecraftConnection.java :220) [12:10:42 ERROR]: at com.velocitypowered.proxy.connection.client.ClientPlaySessionHandler.handleUnknown(Clie ntPlaySessionHandler.java:410) [12:10:42 ERROR]: at com.velocitypowered.proxy.connection.MinecraftConnection.channelRead(MinecraftConnectio n.java:151) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:444) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:420) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerCo ntext.java:412) [12:10:42 ERROR]: at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter. java:93) [12:10:42 ERROR]: at raknetify wrapper//com.ishland.raknetify.velocity.connection.RakNetVelocityChannelEvent Listener.channelRead(RakNetVelocityChannelEventListener.java:83) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:442) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:420) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerCo ntext.java:412) [12:10:42 ERROR]: at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.tryDecode(MinecraftDecoder.ja va:78) [12:10:42 ERROR]: at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.channelRead(MinecraftDecoder. java:61) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:444) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:420) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerCo ntext.java:412) [12:10:42 ERROR]: at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java :103) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:444) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:420) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerCo ntext.java:412) [12:10:42 ERROR]: at raknetify wrapper//com.ishland.raknetify.common.connection.FrameDataBlocker.channelRead (FrameDataBlocker.java:42) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:444) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:420) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerCo ntext.java:412) [12:10:42 ERROR]: at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java :103) [12:10:42 ERROR]: at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111 ) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:442) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:420) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerCo ntext.java:412) [12:10:42 ERROR]: at raknetify wrapper//com.ishland.raknetify.common.connection.MultiChannelingStreamingComp ression.channelRead(MultiChannelingStreamingCompression.java:166) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:442) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:420) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerCo ntext.java:412) [12:10:42 ERROR]: at raknetify wrapper//com.ishland.raknetify.common.connection.MultiChannellingEncryption.c hannelRead(MultiChannellingEncryption.java:100) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:442) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:420) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerCo ntext.java:412) [12:10:42 ERROR]: at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline. java:1410) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandler Context.java:440) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext .java:61) [12:10:42 ERROR]: at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java :425) [12:10:42 ERROR]: at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) [12:10:42 ERROR]: at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:1 67) [12:10:42 ERROR]: at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecuto r.java:470) [12:10:42 ERROR]: at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:569) [12:10:42 ERROR]: at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java :997) [12:10:42 ERROR]: at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [12:10:42 ERROR]: at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [12:10:42 ERROR]: at java.base/java.lang.Thread.run(Thread.java:1589) [12:10:42 ERROR]: Caused by: java.lang.IllegalArgumentException: source has multiple backing buffers [12:10:42 ERROR]: at com.google.common.base.Preconditions.checkArgument(Preconditions.java:142) [12:10:42 ERROR]: at com.velocitypowered.natives.compression.JavaVelocityCompressor.deflate(JavaVelocityComp ressor.java:86) [12:10:42 ERROR]: at com.velocitypowered.proxy.protocol.netty.MinecraftCompressorAndLengthEncoder.handleComp ressed(MinecraftCompressorAndLengthEncoder.java:66) [12:10:42 ERROR]: at com.velocitypowered.proxy.protocol.netty.MinecraftCompressorAndLengthEncoder.encode(Min ecraftCompressorAndLengthEncoder.java:52) [12:10:42 ERROR]: at com.velocitypowered.proxy.protocol.netty.MinecraftCompressorAndLengthEncoder.encode(Min ecraftCompressorAndLengthEncoder.java:33) [12:10:42 ERROR]: at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) [12:10:42 ERROR]: ... 65 more [12:10:42 INFO]: frame-decoder: com.velocitypowered.proxy.protocol.netty.MinecraftVarintFrameDecoder [12:10:42 INFO]: read-timeout: io.netty.handler.timeout.ReadTimeoutHandler [12:10:42 INFO]: compression-decoder: com.velocitypowered.proxy.protocol.netty.MinecraftCompressDecoder [12:10:42 INFO]: via-decoder: com.viaversion.viaversion.velocity.handlers.VelocityDecodeHandler [12:10:42 INFO]: minecraft-decoder: com.velocitypowered.proxy.protocol.netty.MinecraftDecoder [12:10:42 INFO]: flow-handler: com.velocitypowered.proxy.protocol.netty.AutoReadHolderHandler [12:10:42 INFO]: compression-encoder: com.velocitypowered.proxy.protocol.netty.MinecraftCompressorAndLengthEncoder [12:10:42 INFO]: via-encoder: com.viaversion.viaversion.velocity.handlers.VelocityEncodeHandler [12:10:42 INFO]: minecraft-encoder: com.velocitypowered.proxy.protocol.netty.MinecraftEncoder [12:10:42 INFO]: raknetify-bungee-downstream-event-listener: com.ishland.raknetify.velocity.connection.RakNetVeloc ityServerChannelEventListener [12:10:42 INFO]: handler: com.velocitypowered.proxy.connection.MinecraftConnection [12:10:42 INFO]: [server connection] CandySister -> MineCandy has disconnected [12:10:42 INFO]: [server connection] CandySister -> Lobby has connected
Other mods

Checklist

• I am using the official version of the mod.
• I tried the latest development version but the issue persists.
• I searched for similar open issues and could not find an existing bug report on this.

Additional context

[ishland]

Try reproduce with latest devbuild and see if it still happens.