Xbox Minecraft beta experimental world

I am guessing your friend is enrolled into the beta for Minecraft through the xbox insider program

Actually, they sent the beta out to non beta users, and as noted above if they tried to load in their old world, it may be (temporarily) lost. As of 30 minutes ago (via the xbox feed) they advised those who got the beta to uninstall it and reinstall Minecraft
on their xbox.

This is most likely because some is using the 'beta' version of Minecraft available through Xbox Insiders and Windows. You'll have to get it and update your Minecraft to the 'beta' version in order to connect, or they'll have to uninstall it and start a
new world in order for you all to play. Be advised, who ever has the 'beta' version will be locked out of any worlds made with or saved with that version's content until the next update that adds that content is made public.

@Bizarro....... Gh0stz is part of the preview Beta testers..... no different than a rat being treated with experimental drugs before deemed safe for human consumption.....

All of my worlds are up to date cause im in the beta version of minecraft

Hello slyryx,

Welcome to the Xbox Community Forum. Thank you for sharing your concern with us today and we hope that all is well.

As per Minecraft Support: It can be difficult to transfer game files from one device to another. However, there are two methods that can help you transfer your worlds. You can transfer worlds between these devices using a Minecraft Realm or, if you play on an iOS device, through the iCloud method.

Transfer Your World Using a Realm

You must have an active Minecraft Realm to do this. If you have not yet used your Realms free trial, you can use that to transfer your worlds. For more information about Minecraft Realms and how to start a Realm, go to the Realms Plus page.

Note: You must use the same edition of Minecraft and the same Xbox Live account to transfer worlds.

1. From the first device, click the pen icon next to your Realm from the Realms list
   
2. Click Replace World and confirm.
   
3. Choose the world you want to transfer.
   
4. Wait for the upload and then click Let's go!
   
5. Open Minecraft from the second device and click the pen icon next to your Realm from the Realms
   
6. Click Download World.
   
7. Wait for the download and then click Let's go!
   

Your world should now be transferred from one device to another. If you want to transfer another world, repeat the same process.

Transfer Your World Using the iCloud Method (iOS Devices Only)

See the steps below for the Apple iPad:

1. Open the Files app on the old iPad.
   
2. Under Browse, tap On My iPad.
   
3. Tap Minecraft.
   
4. Tap the Games folder.
   
5. Tap the com.mojang folder.
   
6. Locate the file named minecraftWorlds. This has all your worlds in it.
   
7. Press and hold to open the menu.
   
8. Tap Save to Files.
   
9. Locate your iCloud drive and save the world file to the iCloud Drive folders where you want to store it.
   
10. Click Save.
    

The worlds are now saved to your iCloud.

Please see the full article here: Managing Data and Game Storage in Minecraft – Home

We're looking forward to hearing from you. If there are any inquiries about our description or if there are any misconceptions, do reply to the post.