There exists an issue when both The Bumblezone and Integrated Dungeons and Structures and its dependencies are loaded, and when trying to load specific chunks. If you try to load a chunk where an IDAS structure would spawn, there is a chance that the server will get caught trying to process a single tick. We're not sure which of the two is causing it or why, or even what specifically causes the issue, but to recreate follow the steps below.

1. Create a 1.20.1, Neoforge 47.1.101 instance with the most up to date versions of Intergrated Dungeons and Structures, Integrated API, Create, Quark, Zeta, Supplementaries, Moonlight Library, and The Bumblezone.
2. Create a world with the seed "6643873748131111404"
3. Teleport to the coordinates 860, 100 -250
4. Attempt to travel northeast about 150 blocks

Expected behavior: The chunks load as expected, with an IDAS castle structure in the loaded chunks

Actual behavior: The server hangs, and must be killed to exit.

I hope this helps you diagnose the issue.

I made a post with less detail as i did not know it was a bumblezone issue. As it fixed disabling IDAS.

#25

After learning about it being bumblezone i did the same test as in my own issue (removing bumblezone) but with that mod. I investigated the building for anything weird basing my search on what was left of the castle in my issue. Only weird generation was this screenshot.

This issue has been solved by bumblezone as of about an hour ago. The issue turned out to be horses that spawned with owners upon worldgen.