Mounts AI Fix
This mod tries to fix a annoying bug from version 1.19.4+ of vanilla Minecraft related to Mounts and their AI.
About this Mod
Mounts AI Fix Info
Ever noticed how mobs riding other mobs just... stop working in newer versions of Minecraft?
Since 1.19.4, mounts like Ghasts, Phantoms, or Vexes completely freeze when they have a rider, they don’t move, don’t attack, and just sit there until the rider dies.
This mod fixes that.
Mounts AI Fix restores proper behavior to any mob being used as a vehicle, so they can move and act normally again, just like they did before 1.19.4.
You can finally have working Creeper-on-Ghast, Skeleton-on-Silverfish, or Vex-on-Phantom combos again, without breaking their AI.
Fixes the 1.19.4+ mount AI bug (MC-262182)
Should work with any mob, including modded ones
Server-side only clients don’t need the mod
Safe to add or remove from existing worlds
This bug went unnoticed for a long time, but it really breaks mob creativity and custom setups.
If you’ve ever tried making fun mob combinations and wondered why they just stood still, this mod is for you.
Feel free to use in any modpack.
Credit is appreciated! but not required!💙
I have a discord, join now and enjoy my next projects!:
Discord
Available Versions
How to Install Mounts AI Fix on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Mounts AI Fix". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Mounts AI Fix server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Mounts AI Fix compatible with forge and neoforge?
Mounts AI Fix officially supports forge, neoforge for Minecraft 1.21.1, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Mounts AI Fix – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Mounts AI Fix consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Mounts AI Fix with just one click on your server.