I've had this issue since the 1.16.220 update for the windows 10 version. I can access the realm no problem and reset the world but it will now not upload any world of any size using the "replace world" button or opening the world and clicking "play on realms". I've tried deleting and redownloading minecraft, using a VPN, using a second account, using a different computer, starting a new realm on the second account...NOTHING. I keep getting the "an error occurred" message. I reached out to support and all they said was "the world should upload onto the realm even if you get that message".....no. It doesn't.
I had something similar happen during the 1.16.210 update and got it to work by using a different device that was on an older version. I then had to update the app/realm to 1.16.210 and it worked! But I can't get it to work this time.
Andrea Crow
I've had this issue since the 1.16.220 update for the windows 10 version. I can access the realm no problem and reset the world but it will now not upload any world of any size using the "replace world" button or opening the world and clicking "play on realms". I've tried deleting and redownloading minecraft, using a VPN, using a second account, using a different computer, starting a new realm on the second account...NOTHING. I keep getting the "an error occurred" message. I reached out to support and all they said was "the world should upload onto the realm even if you get that message".....no. It doesn't.
I had something similar happen during the 1.16.210 update and got it to work by using a different device that was on an older version. I then had to update the app/realm to 1.16.210 and it worked! But I can't get it to work this time.