My only world I converted to experimental gameplay spontaeously disappeared from the world menu. The non-experimental gameplay version was unharmed. I looked in the minecraftworlds folder and the world was still there. I copied the file, turned it into a .mcworld and opened it in the game. It claimed the import was finished successfully but still was not visible in the world list. The new world also appeared in the game files. I even transfered the file to a different PC and tried again but still with no avail.
I am aware that there is already a post for this bug, but it didn't have much information and I wanted to make sure this was seen.
Comments 2
Cleaning up old tickets: This ticket has not been updated recently (~7 months+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue and is affecting the most recent versions, then please comment, or create a new ticket following the Issue Guidelines.
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Is the world save folder nested in another folder? If so, you might need to move it so that the game files are in the first folder instead.
If the save is somehow adding an extra folder, and you have steps to reproduce the issue. please include them here so it can be investigated.