Hi! When Lithostitched is installed, the custom village pieces don't generate.

This is due to a small issue with where the jigsaw pieces are registered. Lithostitched compiles template pools into a special format for faster structure generation. However, this mod registers its pieces at the ServerStartingEvent, which is after the dimensions are loaded and worldgen can start. Moving to the ServerAboutToStart event will fix this issue.

Ooo, fun. Is there any relevant log output? Does it crash? Does it affect the existing pools in a meaningful way?

Just edited the issue with all the needed info, let me know if there's anything else needed. I was going to submit this as a pull request but Gradle didn't like opening the mod code for some reason.