Converted Superflat world from legacy edition changed to regular world

Do you happen to have a copy of the world before you upgraded it to the latest version or before you transferred it over to Bedrock Edition?

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I uploaded the world to realms and that's how I discovered the issues. I never opened my original world, so I hope it's still safe. It's been a few months since I opened it. I just made another copy to transfer to my PC from Realms. I cannot directly access the file since it's on PlayStation.

Can you upload the .mcworld file of the transferred world?

I just uploaded the world file