System Information
| Field | Value |
|---|---|
| Operating System | Linux - Debian GNU/Linux 13 on x86_64 |
| Product | AMP ‘Proteus’ v2.8.0.4 (Mainline) |
| Virtualization | Docker |
| Application | Minecraft |
| Module | MinecraftModule |
| Running in Container | Yes |
| Current State | Ready |
Problem Description
Issue
When players attempt to join the server, a network error occurs within Netty during the login phase (canPlayerLogin). The console outputs an EncoderException: Sending unknown packet ‘clientbound/minecraft:disconnect’, causing the connection to drop abruptly with an internal server error. This seems to be a packet mapping conflict during session validatio
Reproduction Steps
- Start the Paper Minecraft server with Geyser, Floodgate, and ViaVersion installed.
- Attempt to log in to the server using a client or cross-play connection.
- The server crashes the connection and logs a Netty encoder exception regarding an unknown disconnect packet.