the config about Worldgen donot work

<img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/383b6228-ee60-4fd0-b932-2b698b7b17d5" />
<img width="572" height="210" alt="Image" src="https://github.com/user-attachments/assets/43002248-0a70-4045-9b30-080ce524b2c7" />
in 1.20.1forge，the config about Worldgen donot work。