Jujutsu Craft Index Fix

by Almirion · on Modrinth

This Mod was made to fix the Index out of Bound Multiplayer bug. Free Minecraft Java mod for 1.20.1, 1.20.2, 1.20.3.

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(Every Server is allowed to use this mod!)

Jujutsu Craft Index Fix is a server side Forge mod created specifically for the Jujutsu Limitless RPG Minecraft server (https://discord.gg/Mr8YnQbHCK). It fixes a known networking issue where clients running the JujutsuCraft mod send an invalid difficulty packet during login, which can cause players to be disconnected.

This mod fixes the annoying bug where you need RNG to be able to connect to your server when other players are online and playing

Verified by MCModsHub

Ships as jujutsucraftfix-1.0.2.jar — drop this file into the mods folder
Download size: 6 KB
Download link checked 31 Aug 2026 — working

These come from our own check of the pack file, not from the source page.

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All Mods for Java All Minecraft Java mods Java mods for 1.20