Exploring 1.20.4 worlds in 1.7-1.8 causes player to be kicked

[Kichura]

/viaversion dump Output

https://dump.viaversion.com/4d7d9b687035e8dffebfa91fdd05c2a2192818add64c90a742b2d591bc9eca3a

Console Error

The server logs can be found here.

Bug Description

When exploring any 1.20.4 worlds in 1.7.x - 1.8.x client, The player will eventually get thrown out from the server after exploring for a while.

Steps to Reproduce

1. Make a new 1.20.4 server,
2. Install the latest via* plugins as normal,
3. Log in with any 1.7.x - 1.8.x client,
4. Explore the world for a while - Usually creative is the fastest method.

Expected Behavior

The player will not get thrown out from the server.

Additional Server Info

1. This server did not use any proxy-related software,
2. Purpur Build 2176, (MC: 1.20.4)
3. ViaVersion 4.10.1-SNAPSHOT, ViaBackwards 4.10.0 and ViaRewind 3.1.0.

Checklist

• Via plugins are only running on EITHER the backend servers (e.g. Paper) OR the proxy (e.g. BungeeCord), not on both.
• I have included a ViaVersion dump.
• If applicable, I have included a paste (not a screenshot) of the error.
• I have tried the latest build(s) from https://ci.viaversion.com/ and the issue still persists.
• I have looked at https://www.spigotmc.org/resources/viarewind-legacy-support.52924/ and it does not offer a fix for my problem

[Barvalg]

[FlorianMichael]

Does this also happen with 1.9.x clients?

[Kichura]

Doesn't seem like i can reproduce on there except if i'm correct, the chunks loading on 1.9.x is much more odd compared to the other two client versions.