I had a player exploring and suddenly the server has started instantly crashing the moment he loads in and the chunks around him generate. From looking at the log file it seems something associated with Lost Cities is leading to a "Feature Placement" issue

crash-2022-07-21_22.42.50-server.txt

As a follow-up, deleting the region file associated with where he was and deleting the LostCities generation file in the serverconfig folder of the world save to stop any further cities from appearing fixed the issue. We returned to the coordinates causing the crash which fresh-generated after the region file deleted and it worked like a charm.

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.