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Supplementaries [NeoForge] - Player Disconnected upon Death #259
Description
Minecraft version
1.21.1
Describe the bug
When a player dies while the chat is open, the client disconnects with a NullPointerException: Screen cannot be null originating from Forgified Fabric API's ScreenEvents.remove(). The crash is triggered through Supplementaries' ClientPacketListenerMixin injecting into handlePlayerCombatKill.
Steps to reproduce
- Install the three mods listed. Forgified Fabric API is installed directly.
- Join a world or server.
- Die while the chat is open.
Logs
https://gist.github.com/abb3v/7fb0a55ec21f99d9ae1193605f99cad1
Additional context
Using the setup:
| Field | Value |
|---|---|
| Minecraft | 1.21.1 |
| Loader | NeoForge 21.1.219 |
| Supplementaries | 1.21-3.5.19 (NeoForge native version) |
| Moonlight Lib | 1.21-2.29.16 |
| Forgified Fabric API | 0.116.7+2.2.3+1.21.1 |
Connector is not needed for this bug
Activity
Fix attempting to remove null screen when Supplementaries is installed
electricsteve commentedon Apr 21, 2026
It is somehow still happening to me and my friends. I'm debugging rn
electricsteve commentedon Apr 21, 2026
EDIT: can't figure it out...