When I create a new server in the last 2 days and enable caves, I just get an error message saying to try again, but when I disable caves I can open the new world just fine. This is a new issue for me, as all servers previously have had caves and ran very well, and this isnt an issue with mods, since even with all server and client mods disabled, I still can't open caves.
Thanks for reading!
(hopefully its fixable)
1)Host game 2)enable co-oprative game type 3)enable caves 4)start game