Hi! I run my world pregenerating via Chunky and get this error from time to time, sometimes need to delete region files to fix issue. As far I know, IDAS the only mod that place that kind of structures, uses Create contraptions and blocks.

crash-2023-06-13_04.21.48-server.txt

This is caused when another structure intersects an IDAS structure, breaking some kind of kinetic generator from Create. Using a datapack to add structures to the avoid structures option should help. The error itself is on Create to fix.

Create is refused to fix..