Error in mixin in NetworkRegistry#initializeNeoForgeConnection

[srccc74]

Minecraft version

1.21.1

Describe the bug

neoforged/NeoForge#2491

Steps to reproduce

1. Join to server (Randomly appears)

Logs

https://bytebin.lucko.me/1FV9voV4Ps

Additional context

This error occurs randomly after a server restart and does not allow any player to enter. In my space, restarts are set every 4 hours, and this error occurs about once a week.

The server successfully starts without errors until players enter, and then does not allow anyone with the same error.
I've seen a similar error with other people in the neoforge discord, and it always says size (x-1) is less than x, but for different modpacks(?) x value can be different

Full context - neoforged/NeoForge#2491

[Su5eD]

Can you please reupload the log? The paste seems to have expired

[srccc74]

7 months past since my report, I no longer have logs or use Sinytra whatsoever. Issue may be closed now.