Hotfix: The 1.21 Connection Patch (v1.1.1) 🩹

This is a critical hotfix for the v1.1.0 Next-Gen Update. All users must install this version to prevent connectivity issues.

🐛 Bug Fixes

• Fixed a critical crash on player join: Resolved an issue where players were immediately kicked with an "Invalid player data" error upon connecting to a server or opening a singleplayer world.
• Matrix Networking Patch: Updated the internal ServerPlayNetworkHandler packet interception mixin to properly map to the new ServerCommonNetworkHandler hierarchy introduced in Minecraft 1.21.