Replay issue on 1.17+ clients through 1.8 server(viaversion)

[MrF1yn]

On playing a replay on a 1.8server from a 1.18-1.17 client the player npc doesnt spawn,
block actions are still visible.
This issue disappears on playing the replay from a 1.16.5 client which means that something has changed related to npc spawn packets in 1.18-1.17.

Would really be glad if this issue is fixed since a lot of minigames servers run 1.8 server forks along with viaversion for increased performance.

[MrF1yn]

Update:
i watched the replay from another account and it worked!
When I joined from both account and watched again it failed with the duplicate uuid warning which makes sense now that the client is ignoring duplicate packets

[MrF1yn]

Which basically means that instead of using the actual uuid,eid of the original player it needs to be replaced with a counterfiet for the client to render it.

[Jumper251]

Maybe a config option that when enabled always uses the 1.18 way of spawning npcs could fix this.

[MrF1yn]

Or maybe directly integrate into viaversion and check the client's version then do the spawning according to it. A more handsfree experience

[MrF1yn]

Made a pull request addressing the issues