Equipment Packet Fix
A simple 1.20.1 forge mod that fixes a weird itemstack encoding issue in ClientboundSetEquipmentPacket causing clients to be kicked.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.
Equipment Packet Fix (1.20.1 Forge)
Mixes into CompoundTag to do two things:
- Avoid a
ConcurrentModificationExceptioninCompoundTag#writeby converting the tag's key set into an array before iterating - Avoid a
EncoderException(caused byNullFointerException) inCompoundTag#writeNamedTagby adding a null safeguard
Config
detectExceptions - (default false) Try and log when exceptions might happen, logging the CompoundTag in question
Modpacks
Free to use in modpacks, but please do not redistribute.
Credits
Logo textures from Minecraft (armor) and Minecraft Dungeons (hammer). Disconnect screenshot from reddit
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as equipmentpacketfix-1.0.0.jar — drop this file into the mods folder
- Download size: 12 KB
- Download link checked 12 Sept 2026 — working
These come from our own check of the pack file, not from the source page.