1.7.x clients cannot join velocity->paper 1.20.4

[Kichura]

/viaversion dump Output

https://dump.viaversion.com/e69757425c33e0584c6b39d69ae7350ddedae20293b6a8fa5037ab081ba1dc09

Console Error

(No console errors were found other than client being told that velocity could not connect client to main server)

Bug Description

When attempting to a velocity proxy that is paired with an Paper 1.20.4 server running via* plugins, the 1.7.x clients instantly drop and cannot log in.

Steps to Reproduce

1. Create a velocity proxy with either offline mode or legacy forwarding,
2. Create a Paper 1.20.4 server with the via* plugins on it,
3. Try to connect to server with an 1.7.x client,
4. Get kicked out.

Expected Behavior

1.7.x clients can log in properly without issues.

Additional Server Info

1. Yes - This setup is using Velocity, (Build 316)
2. Paper 1.20.4 as backend server,
3. ViaVersion (4.9.3-SNAPSHOT), ViaBackwards (4.9.2-SNAPSHOT) and ViaRewind (3.0.6-SNAPSHOT).
4. This issue is similar to ViaBackwards' #663, only that it also affects 1.7.x clients.

EDIT: This not only affects velocity proxies but bungee itself as a whole.

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 [Bot]]

[Kichura]

Also fixed.