The error when i try to load or copy my world ,"Failed to sync the world, The world is not...

I uninstalled Minecraft and I can now see the world on my world list but whenever I try to edit or load the world it says “Failed to sync world data the world is not fully synced or has been corrupted try playing the world on a console where it’s in a good state and try migrating it again”

This worked on two of my worlds but not on my main world. When i click A, and try and sync it there is now 'syncing' bar or loading screen, it takes me instantly back to the play game screen. The other two worlds are now working though.

I did those steps , reloaded minecraft & my world is showing up but when I click it , it says “ Failed to sync world data , the world is not fully synced .....”

What do I do now ?

Thank you for helping me out here Jesse.

I followed your instructions to no positive result. When I try to open my world it still tells me: Failed To Sync World Data; "The world is not fully synced or has been corrupted. Try playing the world on a console where it's in a good state and try migrating it again."

So, unfortunately that didn't work. What other suggestions do you have?

Thank you.

I have tried this but only a certain of worlds work but yet again it says.

Failed To Sync World Data

Could not sync your world data. Would you like to try again?