I'm Japanese so I use google translate.  This is a bug about realms.  I can't upload a world from a local file to realms.  Since the coordinates cannot be displayed in realms, I downloaded it to a local file once, changed the settings, and then tried to upload it again, but an error occurred and I could not upload it.  This bug breaks the game.  Some players may not notice this bug and make a subscription.  Therefore, you should either close realms until this bug is fixed, or allow the coordinate display settings to be changed on realms as well.  Sorry for the hard-to-read English.  Thank you for your consideration.