
Chunk Save Fix: Modern Port
Fixes MC-224729, where partially generated chunks are not saved under certain conditions, leading to broken terrain features. This is an unofficial port of the original Chunk Save Fix mod for modern Minecraft versions.
Screenshots

About this Mod
Chunk Save Fix: Modern Port is an unofficial modern port of the original Chunk Save Fix by askaban23. It fixes MC-224729, an issue where partially generated chunks are not saved in certain situations, which can lead to broken terrain features at chunk borders.
This mod helps ensure chunks are saved more reliably when they are kept loaded by tickets but have not yet reached full border accessibility.
Features:
- Fixes partially generated chunks not being saved correctly
- Helps prevent broken terrain generation at chunk borders
For example, this can help with chunks kept alive by spawn tickets, player tickets, or worldgen-related tickets that might otherwise be skipped during saves.
Available Versions
How to Install Chunk Save Fix: Modern Port on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Chunk Save Fix: Modern Port". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 26.1
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Chunk Save Fix: Modern Port server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Chunk Save Fix: Modern Port compatible with fabric and quilt?
Chunk Save Fix: Modern Port officially supports fabric, quilt for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Chunk Save Fix: Modern Port – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Chunk Save Fix: Modern Port 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 Chunk Save Fix: Modern Port with just one click on your server.