
ModsJava
BugFixerUpper
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
BugFixerUpper is a Minecraft mod that fixes a few critical and non-critical bugs in the game.
Features
- Whatever you suggest in the issue tracker.
Chunk loading and generation
- Prevent passenger entities from sending game events during chunk loading/generation causing deadlocks.
- Prevent item frames from sending sounds and events during chunk loading/generation.
Misc
- Save vehicle passengers at their actual position (MC-263030).
- Parrot mob spawner blocks treat all air types equally (MC-232359).
- Curse of vanishing does not apply to items inside donkey/mule/llama chest slots.
- Leads pull on mobs and boats that the player is riding (Install on client!)
- Regenerating exit end portal does not drop torches
- Ghast balls, wind charges and shulker bullets do not have an extended click box for creative mode players (Install on client!)
Structure blocks
- Structure blocks load paintings at the correct position (Thanks to BluSpring) (MC-102223).
- Structure blocks with combined mirror and rotation place paintings and item frames with the correct rotation.
Tick freeze
- Prevent players from unfreezing other passengers in multi-seat vehicles during tick freeze (MC-268358).
Installation
Must be installed on the server to work in multiplayer. For usage in singleplayer worlds, the mod has to be installed on the client.
- Download the mod from Modrinth or CurseForge.
- Place the downloaded
.jarfile into themodsfolder of your Minecraft directory. - Launch Minecraft with the Fabric mod loader.
Usage
- Install the mod and be happy that some bugs are fixed.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 26.1, 26.1.1, 26.1.2
- 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.
Verified by MCModsHub
- Ships as bug-fixer-upper-1.10.0.jar — drop this file into the mods folder
- Download size: 47 KB
- Download link checked 30 Aug 2026 — working
These come from our own check of the pack file, not from the source page.