Stonecutter Fix
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on ModrinthFixes the horrendous "UnsupportedOperationException" when clicking in the stonecutter output, and shift clicking.
Mainly client side, but it's recommended to also install server side to avoid any item losses due to desync.
Got to this since i was playing with my boyfriend with 400+ mods installed, and realised, shit, the stonecutter makes our client crash. So i dove into the crash log and saw the mixin errors and searched online, searched githubs and nothing. So i made this shit. And it's absolutely horrid but hey, it's a fix and it WORKS. It fixed the stonecutter for me and my boyfriend so... success?
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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 Modrinth — 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 StonecutterFix.jar — drop this file into the mods folder
- Download size: 3 KB
- Download link checked 26 Sept 2026 — working
These come from our own check of the pack file, not from the source page.