Yesterday, having just completed a large storage system, approximately 50double chests with all their contents disappeared. The storage system is several floors high and the glitch has made about half of them disappear, the same chests on every floor. I can't access the chests or get out the thousands of blocks that were stored in them. I can't move into a block where there was a missing chest, and if I break the chest with an axe it appears as an item which I can pick up, but none of the items from inside the chest appear. I am on realms and can't reload from a backup as the other members will not allow it. Please help. I have lost days of work here.