Cant load up any worlds on xbox one

Hello, first it's a pleasure to be able to help you today.

My name is welcome to the community.

Hello Sam, I don't know if you've tried any procedure on the console, if you haven't tried it, follow the procedure below.

The first is a clear cache

1. Go to the Xbox press and hold the XBOX power button on the console for 10 seconds until it turns off

2. Wait 10 seconds until it turns off

3. Wait 1 minute with it off

4. Turn it back on

Xbox One reset keeping Games:

Press the Xbox button to open the panel.

Select system > Settings > System > Console Information

Select Reset console.

Restore and maintain my games and apps.

Rest assured, you won't miss games or saves

Note: You need to know the email and passwords of your accounts when performing this reset.

Ok i still cant get into only this world- all other worlds are working but when i try to load this one it says “ there was a problem loading this world”

That's weird. But aleast ur world loaded tho I had a world with over 100 hours on it and I cant load it so xbox support told me to delete it and just make a new one I was like ughh..

I followed the steps and the world still seems to be de-synced/corrupted. I loaded, a saved and quit the world on the Xbox one, and powercycled, then loaded the world on the Series X, but the same message popped up. It did bring up a screen saying “syncing data for Minecraft” with a load bar, though. Any other ways to upload this world? *Apologies for the bad image quality*

Also, it might be worth noting that the world is labeled as being 456 MB on the Xbox series X, while only 350-ish on the Xbox One.

If I remember correctly, 1.13 is the insider build. You'll need to be part of the Insider program and opt in for the insider build in order to get it. Whomever is in control of your console removed you from that, which is why you can't access those worlds
anymore. Your choices are to either go back to insider, or wait until 1.13 is mainstream.