bug: Unable to rejoin a server after a client crash.

[musicbynumbers]

Hi, This may not be a bug with L2 hostility but if the client crashes and I try to rejoin (even if I restart minecraft, I get the below error on trying to rejoin

[07Jun2026 02:08:24.919] [Render thread/WARN] [net.minecraft.client.multiplayer.ClientCommonPacketListenerImpl/]: Client disconnected with reason: The server send registries with unknown keys: ResourceKey[minecraft:item / l2hostility:curse_of_gluttony]

The exact item at the end is different each time I think but it always mentions your mod.

The only way for me to rejoin the server is to restart server too.

The mod files on both server and client are definitely the same as well so not sure why this happens..

Let me know if you need anything else.. Below is the client crash report that was just before not being able to join back in

Crash report (client side) https://mclo.gs/9PVmH3b

and the logs after reloading the client and not being able to get back in.

Debug https://mclo.gs/xDP3TIx
latest https://mclo.gs/vUoZPB8

[lcy0x1]

looks strange. Some other mod deleted my mod items?

If the client crash for any reason, you can't join the server?

[lcy0x1]

could you send me a packwiz/curseforge/modrinth format modpack index? It's easier to test that way

[lcy0x1]

if the issue happened, are other players affected?

[musicbynumbers]

yeah, very weird bug :)

If the client crashes to desktop then if I just reload the client and try to rejoin the server (which is also running locally on the same machine) then I get a random L2 hostility item warning like the above one but the item might be different.

The crash itself can be anything it seems too.

It's a ridiculous amount of mods though and it takes a while to join the server again anyway and I use packet fixer to get in without a timeout warning so something weird is happening. Occasionally I do have to flush the DNS too so maybe it's a windows 11 issue as I've been connecting back through the network to test this modpack over a network (albeit a local one).

Anyway, it's not the end of the world just wanted to mention it in case it was an obvious fix but yeah.. weird :)

[musicbynumbers]

just saw your other questions sorry..

"could you send me a packwiz/curseforge/modrinth format modpack index? It's easier to test that way"

not sure how to do that.. I'm on curseforge, will look it up but please let me know if there's a particular way.

"if the issue happened, are other players affected?"
very good question but I'm still making it so it's only me at the mo. Will open it up in a few weeks to friends and see then, I've got another local pc I will try it on as well soon so will let you know

[lcy0x1]

CurseForge has an option to export the modpack. So that I don't need to download every mod manually. Also faster to receive than entire modpack

[musicbynumbers]

yeah.. Just found that out and started doing that but will be a big file so remembered I've got a backup on google drive of both client and server from just over a week ago that still does the bug so maybe that's more helpful?

They are zipped up so easier to download. Hopefully this is better as you can unzip both and test from there. Just don't berate me too much about how stupid it is to have that many mods lol ;) it does work but needs about 24 gig on client side and 16 on server ;) I think I need to stop watching youtube vids on the latest mods, just too many good ones!

https://drive.google.com/drive/folders/1Gz8tTYNqZblRWwrmYGPa2oddmuplbJmK?usp=sharing

[lcy0x1]

that's exactly what I'm trying to avoid... My local internet is not capable of downloading anything larger than 100 MB

[musicbynumbers]

Ah, will try the index thing again. It contains some modrinth and test mods from discord though so curseforge complained..

[lcy0x1]

packwiz is the only option then, but it's quite complicated

[musicbynumbers]

Yeah... I can have a look at doing that later maybe then, Not much time today. Or maybe do a curseforge one anyway and hope it's the curseforge mods that cause it? ;)

[lcy0x1]

you can try that on your end first.

I experienced similar issues before from multiple modpacks and the only common denominator is Sinytra Connector.

Try remove the fabric mods first

[musicbynumbers]

here's the curseforge one is that's helpful.

manifest.json

modlist.html

[musicbynumbers]

oh crap.. I thought I didn't have sinytra but just realised you mean embedded right? I'll do a deep search and see what mods are using it and maybe get rid of them if I don't "use" them much

[musicbynumbers]

although I think they are mentioned as fabric in the bottom of the crash report maybe too..