Generating World hangs at 0%

I have a mod that contains a lot of different structures and features that generate in the world, and it has worked well up until recently. However, upon updating to MCreator 2024.1, I can no longer generate new worlds as the game will always hang (not crash) at 0% on the generating world screen. Worlds I generated before updating can still be loaded and they work just fine, so I figure it has to be something regarding how world gen has changed in 2024.1. I was wondering if anyone knew what changes MCreator made to world gen in 2024.1 that could have caused my mod to stop generating worlds.

I can provide more details regarding how these structures/features spawn if you need them!