Local Server Crash withException ticking world whilst standing still, looking at JourneyMap whilst the world pre-generated in SP, using BBv6.1

@PG85 This error does not happen with every seed I try, some seeds cause this to happen sooner than later so I am thinking there is an issue with a biome config.

https://pastebin.com/aSF45J8t

Hey thanks for reporting this, unfortunately this appears to be a threading/concurrency issue that occurs only rarely. I have not been able to find a cause for it yet. If you find a way to reliably reproduce this problem, please let me know.

Hoping this has already been fixed for v7, if not, feel free to open a new ticket.