Still 1.21(.1) players can't join in proxy.

[ImFoxerARG]

Describe the bug
Using the development builds with the pull: #996 (tested also with #999 ) - the problem is another now:

[19:21:10 INFO]: [/:62914|ImFoxerARG|1.21] <-> ServerConnector [survival] has connected
[19:21:11 INFO]: [ImFoxerARG] disconnected with: IndexOutOfBoundsException : writerIndex(1673) + minWritableBytes(1) exceeds maxCapacity(1673): PooledSlicedByteBuf(ridx: 0, widx: 1673, cap: 1673/1673, unwrapped: PooledUnsafeDirectByteBuf(ridx: 1673, widx: 1673, cap: 1673)) @ io.netty.buffer.AbstractByteBuf:294
[19:21:11 INFO]: [/:62914|ImFoxerARG|1.21] -> UpstreamBridge has disconnected
[19:21:11 INFO]: [/:62914|ImFoxerARG|1.21] <-> DownstreamBridge <-> [survival] has disconnected

The problem still occurs only in 1.21(.1) players, other versions can join without problems.

Software brand
Bungeecord: NullCordX 3.8.7
Backend: Purpur 1.20.4

Plugins
Plugins: Apollo, AutoGeyserUpdate, Bungee-Reconnect, ChatSentinel, CommandForward, EaglerXBungee, Floodgate-bungee, LiteBans, LuckPerms-bungee, Matrix, nLogin, nuvotifier, packetevents-bungee, Pl-Hide-Pro, SkinsRestorer, tebex.

How To Reproduce
Join with any client with the version 1.21(.1) to the server.

[booky10]

does this work with vanilla bungeecord? we cant support nullcordx

[ImFoxerARG]

Yes, this work in vanilla bungeecord, I will try to ask for support on NullCordX discord