Tim Richard

Update: As stated in my previous comment this is being triggered by a wall of double chests. They render incorrectly and crash the realm when accessed. The realm then resets to the last save. This effectively loses the last 30 or so minutes of gameplay. The new information is that the double chests are positioned over a chunk border. Is it possible that the chucks are being unloaded at different times causing the issue? 

This is happening fairly consistently on my Realm. The trigger for me is a specific set of double chests. They only render as a single chest until you hover over them revealing the hitbox of the rest of the chest. Trying to open them resets the realm to the last autosave. Usually I lose 20-30 minutes of gameplay. I would say this happened no less than 10 times in the last 5 days. It is getting difficult to be willing to play if my work is consistently undone.