I've recently got Minecraft realms on IOS and have been trying to replace my realms world with another world I've had for a long time which is 34.0MB. Export in Progress works just fine but as soon as it gets to initializing upload, it pauses for a few seconds before saying, "we couldn't confirm if your world uploaded properly. Please join your realm to check, then try again if it hasn't been updated to the new word"

I've tried the steps it says along with following youtube tutorials or asking for for help from professional gamers but nothings worked so far.