XBOX ONE: Minecraft Xbox World Not Syncing To The Cloud

Are you talking about a Minecraft world? Also, what version [Xbox one(the old one) or bedrock (the latest one with cross platform)]?. Usually if you're connected to Xbox live, all worlds sync up to the cloud, if you're playing on Minecraft Bedrock edition,
when you click play, there should be an option at the bottom to sync old worlds.

If you want to verify that your daughter's Xbox One Minecraft saves are being backed up to the cloud, you can follow these steps:

Make sure that your Xbox One is connected to the internet and that your daughter's account is signed in.

Start Minecraft and load up one of her saved worlds.

Press the Xbox button on your controller to bring up the Guide menu.

Navigate to the Settings gear icon, and then to the System tab.

Choose the Storage option and then select the saved world you want to check.

If the saved world has been backed up to the cloud, you should see a "Synced" status message. If it has not been synced, you should see a message that says "Not synced" or "Sync pending."

If you see a "Sync pending" message, wait for a few minutes and then check again. The sync process may take some time depending on the size of the saved world.

If you have an Xbox Live/Gold/Game Pass subscription, your daughter's Minecraft saves will be automatically backed up to the cloud. However, even without a subscription, your saves should still be backed up to the cloud. Microsoft provides some limited cloud storage for game saves for all Xbox One users, even those without a subscription.

I hope this helps!

Hello Edenquartz,

We thank you for bringing this inquiry to our forums community, and understand that this concerns the cloud saved data for Minecraft not syncing properly.

If you have played the same world that you're trying to access on another console, you could launch Minecraft and the cloud save would overwrite the current save therefore restoring the world.

Unfortunately, if you have not accessed this world on another console, then the world would not be recoverable.

We do advise to review our syncing Xbox One game saves to the cloud error messages support article for
information on cloud sync errors.

Let us know if this information was helpful, and we wish you the best!

The problem is it wouldnt sync, then when it finally did after playing my minecraft world, the cloud synced to the earlier stage

You can sync worlds from Minecraft: Xbox One Edition to Minecraft for Xbox One (bedrock edition) in game,
but you cannot sync the content across, as far as I know.