GroundSpoof & BadPacketsN false

[matsu1213]

Describe the false positive and how to replicate it

Step 1. Relative teleport(shooting a gun) Step 2. Sometimes GroundSpoof false(, then BadPacketsN false on 1.12.2) Step 3. To make matters worse, this causes a chunk rendering bug on 1.12.2 https://youtu.be/kczgM99qLbc?si=VUXLjtkXps59o4pK&t=66

Also confirmed on 1.16.5, 1.18.2(But no false for BadPacketsN) https://paste.grim.ac/dj44ir3

Grim version

grim 2.3.62

Server version

git-Paper-1620 1.12.2

Plugins

AdvancedScope, Crackshot, CrackShotPlus, DiscordSRV, GrimAC, LuckPerms, Multiverse-Core, MythicMobs, PlugMan, Protocollib, Vault, Viaversion, Votifer, WorldEdit, WorldGuard

[SamB440]

Make sure you don't have via* installed on the proxy

[Dg32z]

确保您没有在代理上安装 via*

[matsu1213]

Make sure you don't have via* installed on the proxy

no

[matsu1213]

My guess is that this occurs when the client's performance decreases. The more players there are, the more frequently it happens. Some players experience this issue frequently, while others do not experience it at all.

[matsu1213]

I need an option to disable BadPacketsN.

[SamB440]

Performance does not affect this check. You don't want to disable BadPacketsN, that's an instant disabler.

[matsu1213]

more info (1.12.2) https://paste.grim.ac/y71hnve (/gl 130)

[matsu1213]

[SamB440]

Should be fixed by 9be1688af0a751cb81935d20f76bd2b8a0cf954d, although you probably need #1483 to be able to update.

[SamB440]

You should be able to use the latest commit.

[matsu1213]

This still false on latest commit. (I added some debug info)