Invincibility

[Hwaanx]

Describe the bug and how to replicate it

GrimAC causes players to be invincible when the match starts

1. Use the sword to get into a match
2. Sometimes one player is invincible and other player automatically wins because of it

Grim version

99b272d

Server version

1.19.4 Pufferfish

Plugins

ajLeaderboards, AnimatedScoreboard, Authme, Chatcontrol, Citizens, DeluxeMenus, Essentials, EssentialsSpawn, FAWE, GrimAC, LiteBans, LPC, LPX, Multiverse-Core, MyCommand, PlaceHolder-API, Playtime, PlugManX, ProtocolLib, Ranks, SkinsRestorer, Spleef, StrikePractice, TAB, TntRun_Reloaded, Vault, ViaVersion, VoidSpawn, Vulcan, WebSender, WorldGuard

[MWHunter]

Invalid bug report, you need more information than just that the player is invincible.

[MWHunter]

The burden of proof on a bug for free software is on you - prove that the bug exists and find a way to reproduce it or at least show the issue is with grim. I can't spend hours trying to debug your setup.

[Hwaanx]

The burden of proof on a bug for free software is on you - prove that the bug exists and find a way to reproduce it or at least show the issue is with grim. I can't spend hours trying to debug your setup.

you are very right, i didn't think that way i'll find a way to reproduce it but the bug is very rare my current thinking it could be an issue with strikepractice or vulcan.

[ytnoos]

It's happening also to me but on a bedwars server (not sure it's Grim). When a player respawns and gets teleported on his island, if he doesn't move at all he cannot be attacked. In fact people who crash and stay in the server for a few seconds are impossible to kill

[MWHunter]

fine, it's plausible if Ytnoos says it happens - will try the minimal reproduction of simply respawning and not moving.

[Hwaanx]

fine, it's plausible if Ytnoos says it happens - will try the minimal reproduction of simply respawning and not moving.

you can move in my condition.

[Finoway]

fine, it's plausible if Ytnoos says it happens - will try the minimal reproduction of simply respawning and not moving.

you can move in my condition.

It's just a suggestion, but from what I remember the Essentials plugin has an option to prevent damage after a teleport for 5 seconds. So if the player has been teleported by grimac (or another plugin) because of a detection, this could be the cause of the problem? or even the problem? I remember a similar problem several years ago when I was using essentials, but I haven't tested my hypothesis yet.

[Hwaanx]

It's not for five seconds its forever but you can use projectiles to deal the player damage you just can't hit him.

[MWHunter]

that means that the reach check doesn't see the other player, possibly due to a race condition with world switching or something else

[Hwaanx]

that means that the reach check doesn't see the other player, possibly due to a race condition with world switching or something else

yes players switch worlds when they queue we use multiverse for strikepractice

[Hwaanx]

BIG UPDATE! Watch This Video https://paste.grim.ac/7m9lV https://youtu.be/Y0SPQmVzfBo

[MWHunter]

https://github.com/GrimAnticheat/Grim/blob/16f2e5427c2044a0cc616334f46a8b345e03f36e/src/main/java/ac/grim/grimac/events/packets/PacketPlayerRespawn.java#L113C2-L113C2

Could you try compiling with this line set to if (respawn.getDimension().getId() != player.dimension.getId()) {

This follows minecraft source code better. It shouldn't matter, but I don't know what else it could be.

[Hwaanx]

Sadly it doesn't fix it.

[MWHunter]

Are you using async entity tracking?

[Hwaanx]

I am using pufferfish and i checked the config file, its not there. Im pretty sure async entity tracker is only available in pufferfish+

[Hwaanx]

i am thinking of closing this since i cannot confirm %100 that this happens because of grim @ytnoos you guys switched to polar did this issue got fixed when you did so?

[ytnoos]

It was a very rare issue, until now no one reported anything

[Hwaanx]

It was a very rare issue, until now no one reported anything

Okay then i think i can close this until i get new information