Put the summary of the bug you're having here

What I expected to happen was...:
The realm should have been replaced.

What actually happened was...:
It either said initializing upload for a solid 10 minutes or instantly said error ocurred.

Steps to Reproduce:
1. Go to a realm
2. Press replace world and confirm
3. Wait for a couple minutes and a message will pop up saying error ocurred

(I tried replacing and resetting the realms with multilple maps and nothing has worked)