Aeronautics DupeFix

Aeronautics DupeFix is a lightweight bug-fix and compatibility mod for Minecraft 1.21.1 NeoForge.

It fixes an item duplication issue involving Create and Create: Aeronautics.

Demonstration

Without Aeronautics DupeFix

<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/fBy0qFrWJdE" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

The duplication issue can be reproduced without the mod installed.

With Aeronautics DupeFix

<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/yZlIJKXk8OY" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

After installing Aeronautics DupeFix, the duplication issue no longer occurs.