When the update came out I copied our realms world and then replaced it with the same copy so it update the world to 1.16 and now we're having trouble. It keeps saying, "error occurred" when we try to upload the backup world but we can still use realms and its the same world but it's brand new having us start from scratch. I still have the original world saved but I can't upload it.
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Thank you for your report!
We're tracking this issue as REALMS-474, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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