Observed behaviour

Actually, I'm not sure the moment i crash I'm in the Pyromancer Tower construction from Iron's Spells 'n Spellbooks, but the crash log showing that. The first start-up was normal, but the crash occurred after I had wandered around for a while.

Expected behaviour

My other world was normal while producing this structure, but this time it was overlapped with another structure that I don't know about, causing the feature placement crash.

Steps to reproduce

Actually, I'm not really sure how to duplicate this, because if I knew the structure that got overlapped with Iron's Spells 'n Spellbooks structure, I'd disable it immediately.

Seed: -2690167101310528256

Server Type

Dedicated Server

Crashlog

https://gist.github.com/longsosos/ee29a2eb570af69e2e26ea6a9760c2b3

Iron's Spells N Spellbooks version

irons_spellbooks-1.20.1-3.4.0.3

Forge version

47.3.11

Other mods

Better Fortresses
YUNG's API
Structure Gel
Servercore
Apotheosis
Integrated Villages
Lootr
TLC