Currently, I have just started a realm playing on it daily for the last week or two. Not having more than 4 players on at a time I didn't think it would get too laggy that fast. But, when I and two of my friends were online we came across some chunks that wouldn't load. We backed up the realm and tried going to the same place again and it worked for a while until we encountered another place where this happened. I downloaded the world to my computer, tried to reset the realm and upload the world back to the realm. But when I attempted to reset the realm it failed, and now I cannot join the realm at all or reset/download/back it up with any means possible.