Lake Crash Fix
Fixes lake features crashing in 1.21!
About this Mod
In 1.21, Mojang made slight changes to world generation to improve performance. Specifically, a change with how chunks are handled.
This causes the Lake feature to crash upon worldgen, as it checks in these now unloaded chunks for the biome, in order to determine if Water it places shall freeze or not.
This mod simply removes that check, therefore fixing the crash.
Available Versions
How to Install Lake Crash Fix 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 (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Lake Crash Fix". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.21
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Lake Crash Fix 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 (1.21.1). You can switch loaders with one click in the panel.
Is Lake Crash Fix compatible with fabric and quilt?
Lake Crash Fix officially supports fabric, quilt for Minecraft 1.21.1, 1.21. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Lake Crash Fix – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Lake Crash 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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