Describe the bug

I recently updated my server network to 1.19.4. Ever since players have reported getting kicked for invalid chat packets. It's quite random and doesn't happen for all messages, not sure what the issue is.

I'm using Purpur 1.19.4 (latest build). Also running Waterfall setup (ViaVersion and AntiPopup-Via is installed), Protocollib is also latest version.

Errors on console: https://pastebin.com/xnpBZ8xH

To Reproduce

1. Make a 1.19.4 server (purpur/paper).
2. Test Plugin
3. Send chat messages
4. get kicked on occasion

Expected behavior

Players should not get kicked.

Operating System

Ubuntu Server

Server Software

Purpur 1.19.4

Server Version

1.19

Proxy Type

Waterfall

Plugin List

AntiPopup, LuckPerms, Viaversion, more... (I have over 20 servers all with different plugins)

Server logs

https://pastebin.com/xnpBZ8xH

# NMS - Only for 1.19.3 and 1.19.4.
# PACKET - Only up to 1.19.2.
mode: PACKET

Saw this in the config, does switching it to NMS fix it?
I saw a discord message with similar issues, it ended up kicking all players (for them).

# NMS - Only for 1.19.3 and 1.19.4.
# PACKET - Only up to 1.19.2.
mode: PACKET

Saw this in the config, does switching it to NMS fix it? I saw a discord message with similar issues, it ended up kicking all players (for them).

yes you gotta use NMS mode on 1.19.3 +