CurseForge · Minecraft mod
CrossFixes
Client-side Forge mod for Minecraft 1.20.1 that patches critical third-party mod crashes at runtime with Mixins, without modifying original JARs.
Quick answer
Which CrossFixes release should I use?
CrossFixes-1.4.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is CrossFixes required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does CrossFixes-1.4.jar need?
CrossFixes-1.4.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add CrossFixes without breaking your instance.
Built for CrossFixes-1.4.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use CrossFixes-1.4.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside CrossFixes-1.4.jar. It opens that exact file at the source.
About this project
What does CrossFixes add?
CrossFixes
CrossFixes is a client-side Minecraft Forge mod for 1.20.1 that patches critical crashes caused by bugs in third-party mods.
It uses the Mixin system to inject fixes at runtime without modifying or replacing the original mod JARs.
Purpose
Some popular mods ship with null-pointer bugs that can crash your game under certain conditions — loading a GUI before the world is ready, or interacting with a broken multiblock structure.
CrossFixes silently intercepts these crash points and returns safe fallback values instead of letting the game throw a NullPointerException.
Fixes
GeckoLib 4.8.3+
- Crashes the client when any animated item is rendered in a GUI (e.g. FancyMenu) before a world is loaded.
MagiChem 0.5.1+
- Crashes when right-clicking a Mirror Labyrinth Router whose multiblock structure is broken or incomplete.
Requirements
| Dependency | Version |
|---|---|
| Minecraft | 1.20.1 |
| Forge | 47.4.18+ |
Each fix is only active if the corresponding mod is present. CrossFixes does nothing if neither of the affected mods is installed.
Installation
- Download the latest CrossFixes JAR from the Files tab.
- Place it in your
mods/folder alongside the affected mods. - Launch the game — no configuration required.
Compatibility
- Side: Client-side only (safe to use on servers without requiring all clients to have it).
- Other mods: CrossFixes does not touch any gameplay mechanics and is compatible with any modpack that includes GeckoLib or MagiChem.
Project description from CurseForge.
Pick your setup
CrossFixes by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
CrossFixes versions and loaders
CrossFixes-1.4.jar
1 Jul 2026
CrossFixes-1.3.jar
16 Jun 2026
CrossFixes-1.2.jar
6 Jun 2026
CrossFixes-1.1.jar
1 Jun 2026
CrossFixes-1.0.jar
9 Apr 2026
Looking for an older file? The official CurseForge project page is in Resources.