I have two XBox Ones, one is set to my home XBox, the other isn't. On the one that isn't i have been trying to play Minecraft for the last three days, but I get the 'can't sync from cloud' error. I have researched this and done everything that has been suggested. Rebooting the XBox, rebooting the router, change mac address and whatever else has been suggested with no result. On the XBox that is my home one, the sync happens in seconds and I can play Minecraft without a problem.