PaperMC / PaperMC/Folia

Server crashed if a operator use minihud and enabled debug data

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status: needs triage
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Description

Stack trace

https://mclo.gs/63CIAQV

Plugin and Datapack List

[03:20:41 INFO]: ℹ Server Plugins (0):

Actions to reproduce (if known)
  1. open a client with minihud mod
  2. join server and make op
  3. open minihud settings, open renders>>debugDataMainToggle, and other any debug data which need op permission
  4. server crashed (not client crash)
Folia version

This server is running Folia version 1.21.11-10-ver/1.21.11@1aa7055 (2026-01-04T19:46:20Z) (Implementing API version 1.21.11-R0.1-SNAPSHOT)
You are -4 version(s) behind

Other

I believe a client-side mod shouldn't cause the server to crash, so I reported it.

origin report: https://github.com/LuminolMC/Lophine/issues/127

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked stack trace at mclo.gs/63CIAQV and reproduce the crash using MiniHUD with an operator enabling the listed debug-data settings. Trace the server-side failure from that report; done means the same reproduction no longer crashes the server.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
backend, game-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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