Why does my Minecraft world only open when imported into the preview and not the release...

Thanks, if you try creating a new world. Something similar happens once you re-open Minecraft or is this happening only with this specific world?

And, do you know if Minecraft received an update recently before this problem with your world started to happen?

I did create it and always played it on the regular version.

I mean, the regular Minecraft version. Not preview

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.
I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today despite this RONBAKERRMVP

Additional information is needed, please tell me:

Is this happening on Xbox or PC?
If it’s on Xbox, what console do you have?
If it’s on PC, are you using windows 10 or 11?

In any case:
Did you created and played this world always on the stable Minecraft version?
May I know if you tried uploading the world to a realm to see if that helps?

I can suggest you other things just to cover everything from your side. But if the issue persist you may need to report this to Mojang here:
https://bugs.mojang.com

Skip the ones that you already tried:

A. Power cycle the Xbox:
1. Turn off your console by pressing the Xbox button on the front of the console for about 10 seconds, until it shuts down completely.
2. Unplug the console's power cable from the console and from the power outlet. Wait 5 minutes.
Important: Be sure to wait at least 5 minutes. This step resets the power supply.
3. Plug the console power cable back in.
4. Press the Xbox button on your console to turn it on.

After that, remove and re-add your profile on the console.
In case you need it, here's how to remove and re-add:
https://support.xbox.com/help/account-profile/m...

Also disconnect your router from power for about 3 minutes. Then connect it again an when everything is working, try again

B. Try opening the game and the world offline - disconnected from the internet

C. Can be a bit odd but try using a custom DNS address:
go to Settings > Network > Advanced Settings

Once you’re inside the Advanced Settings menu, go to DNS settings and select Manual from the list of available options.
When you get to the next screen, enter 8.8.8.8 in the box associated with the Primary DNS and 8.8.4.4 in the Secondary DNS box.

Once the default DNS addresses have been changed, restart your console and see if the issue has been resolved at the next console startup.
If that doesn't work use 1.1.1.1 as primary and 1.0.0.1 as secondary

D. Clear your MAC address
Go to Settings > Network > Advanced Settings > Alternate MAC Address
Select Clear, restart your console and give it a new try

E. Do a factory reset for your console but keeping games and apps
Go to Settings > System > Console info > reset and then select keep my games and apps
**Make sure to know the email and password for all your accounts