Minecraft world showing in launcher but not in the game and files.

There is a bug with the Xbox app updating Minecraft inadvertently deletes the worlds on the game. So that is why the message shows on the launcher. It shouldn't affect you, as you are using a mac.

You can check it under Settings > General > Minecraft: Java Edition Settings > Show historical versions of Minecraft: Java Edition in the Launcher. You can also try deleting your Minecraft files, look for “.minecraft” file located in the AppData folder. Type “%appdata%” in the Windows search bar. then delete the “.minecraft” file completely from the folder that opens. After this step, by opening the Microsoft Store, you can try to download the Minecraft Launcher application and launch the game.

If it persists, I suggest you check with Minecraft team so their technical team can further check this error code. You can submit the request using the link below:

https://help.minecraft.net/hc/en-us/requests/new

Hello, My name is Jesse. I'm an Independent Advisor and a member of the Microsoft community and I'd love to assist you today.

Hit the windows key + R and type %appdata% and then proceed to find the .minecraft folder and delete it and then open up the launcher again and it will take you to the login screen. Your worlds are gone but you can drag your world files out and put it on your desktop until after running Minecraft again so it creates the folder necessary to put your worlds back sorry for the aneurysm you gained from reading that. (take the world files out first before deleting the .minecraft folder)

Credit - PugUnknown

Close your launcher. Navigate to your .minecraft folder and delete the launcher_msa_credentials.bin file. Then, run the launcher and log back in.

Hello,

I was having the same issue yesterday, I the following solution worked for me.

In file explore i founI found the Minecraft launcher and deleted the folder.

I then went to the Microsoft store and installed Minecraft for windows only, without the launcher. Once it was installed I could then install the launcher without issue and launch the game