(entity NaN dupe issue?) Game crashes while playing on 1.7.2 on a 1.21 server (only on 1.7.X)

`/viaversion dump` Output

https://dump.viaversion.com/3bc799d84ee6e98a52bc4b426fb9813630910de4818be03906c8a6ee2b11d8a3

Client Crash Log

1.7.2 client crash log (also I just looked at the crash log.. and apparently the dupped entities are NaN? could that be why I'm crashing?)

Bug Description

Sometimes it works just fine, but when I go into a certain area, 1.7.2 immediately crashes. I also had an issue like this before, and it seemed like there was an entity with invalid data or something, so maybe the same issue is occurring here? UPDATE: I went and enabled hitboxes, but before my game crashed, I saw 25-75 MASSIVE hitboxes that were stacked on top of each other in random places.

Steps to Reproduce

Join hoobs.live on 1.7.2 using ViaProxy.
Go forward towards the farm.
The client will crash with a crash log (or it'll crash immediately when you join).

If this doesn't work, play on the server for a little bit and then try to go back to spawn with the massive hitboxes (with hitboxes enabled), eventually you'll end up crashing. My guess is maybe your loading in those NaN entities which causes the crash? tbh idk

Expected Behavior

Not crashing + Nan entities being removed or no longer duped at high speeds to where if you have a beefy pc, it's mostly playable until you hit around 10k-15k NaN entities.

Additional Server Info

I used ViaProxy, and I also created an issue there, but they said to go here instead.

Checklist

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

ViaVersion / ViaRewind