I am having the same issue. I was able to Replace World successfully when I first bought my realm about 5 months ago, but since the latest update (when the coordinates were added without cheating) I have not been able to replace my world. At first I thought it was glitching due to the fact that I had downloaded the world and activated map coordinates and then tried to Replace World with the coordinates on, but when I tried to Replace World with multiple other vanilla/default settings worlds none of them worked either. On both PC (Windows 10) and XboxOne, the "Uploading World" dialogue pops up and the progress meter stays at 0%. A few seconds later a dialogue box pops up saying "Transfer Complete" (Or something like that) but nothing happens. The progress meter still says 0% of ###MB, and the only option is to click "Cancel" or reset/force quit.
I am having the same issue. I was able to Replace World successfully when I first bought my realm about 5 months ago, but since the latest update (when the coordinates were added without cheating) I have not been able to replace my world. At first I thought it was glitching due to the fact that I had downloaded the world and activated map coordinates and then tried to Replace World with the coordinates on, but when I tried to Replace World with multiple other vanilla/default settings worlds none of them worked either. On both PC (Windows 10) and XboxOne, the "Uploading World" dialogue pops up and the progress meter stays at 0%. A few seconds later a dialogue box pops up saying "Transfer Complete" (Or something like that) but nothing happens. The progress meter still says 0% of ###MB, and the only option is to click "Cancel" or reset/force quit.