NaN Health Fix Neo
Fixed the issue where mobs with NaN health could not die properly.
About this Mod
This mod resets the health of any entity whose health value becomes NaN back to 0, allowing it to die normally.
It is a 1.21.1 NeoForge remake of the original mod NaN Health Fixer, which has not been updated for a long time.
Available Versions
How to Install NaN Health Fix Neo on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "NaN Health Fix Neo". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
NaN Health Fix Neo server crashes on startup – what to do?
Most common cause: wrong neoforge 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 NaN Health Fix Neo compatible with neoforge?
NaN Health Fix Neo officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with NaN Health Fix Neo – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if NaN Health Fix Neo 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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Install NaN Health Fix Neo with just one click on your server.