A few of my friends have been reporting that they get randomly disconnected on realms, only to relog to find about an hour of progress missing. Nothing unusual happens before the disconnection other than a little bit of lag. I have not experienced this myself, but they find it happens quite frequently at some times, and has become more apparent over the past 2 weeks. If there are more than 1 person online, disconnection and the progress rollback happen to all players at the time. Ive (as the realm owner) tried turning the realm on and off through the settings panel, but to no avail.