My creative world disappeared from my world list overnight. The world file still exists in the saves folder. I was playing on 1.16.3, on Optifine.
What I expected to happen was...:
I was expecting that the world would be there. If I accidentally deleted it, then the file wouldn't be in the saves folder.
What actually happened was...:
I searched through the worlds, but it wasn't in the list.
Steps to Reproduce:
1. Play on your Minecraft world, then log out of the game.
2. Shut your computer down, and turn it on the next day.
3. Look for the world in the game.
Thank you for your report!
However, this issue is Invalid.
Your game, launcher or server is modified.
If you can reproduce the issue in a vanilla environment, please recreate the issue.
Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the creator of the plugin or resource pack.
If you have problems on large servers, such as The Hive and Hypixel, please contact them first as they run modified server software.
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