Describe the bug
Quite simple - the servers world will be saved, but the players position, and inventory will not.

To Reproduce
Steps to reproduce the behavior:

1. Install C2ME,
2. Use on server,
3. Get advancement,
4. Reboot Server,
5. Log on,
6. Get the same advancement again.

Note: I've had C2ME installed for a while. I was getting this error:
06.09 15:56:33 [Server] main/WARN Mod 'c2me' attempted to override option 'mixin.world.player_chunk_tick', which doesn't exist, ignoring

Expected behavior
Just... normal player / world saving.

Runtime info (please complete the following information):

• OS: Not sure of OS - Hosted on Shockbyte
• Version: Minecraft 1.21 Fabric 0.16.0
• Mod version: c2me-fabric-mc1.21-0.2.0+alpha.11.106

Crash reports / logs
https://paste.shockbyte.com/giwoyilonanisigebopo

Other mods
See log. Worth noting the player data saving is working as expected following removal of the mod.

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

The log does not include any player logins and disconnects. Please provide the correct log.