When you have a single world in your world folder and delete it in game, the World Generation Screen appears, how it should be, but after pressing cancel, your game crashes.
MC-301321
Game Crashes after deleting the only world in world folder
Resolved
Duplicate
0
Hi!
Thank you for your report!
We're already tracking this issue at MC-301225, so I will resolve and link this ticket as a Duplicate.
I suggest also to browse through the main issue for potential fixes.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki