Whenever I try to add caves into one of my worlds, instead of instantly creating it it says "Launching Server", then "Server is generating world", then finally it says "Dedicated Server failed to start". This bug is extremely annoying because I can't use anything that the caves have to offer. If anyone knows how to fix this, please give some instruction on how to fix it. I'll insert my game files and my game logs if that helps. Thanks!
All I did was I clicked "Add Caves" and this happened when I tried to create the server.