You're not able to reproduce it in house because you need people actually playing the game. These are player caused crashes. I've got a dev server and a prod server. Both identical right now. My dev box I forgot to shut down yesterday and has been up running for 18 hrs. The tent I placed yesterday to test forced terminations is still where I left it, obviously because the server never crashed in the 18 hours.
My prod server that actually has players on it, has crashed like 3 times in those 18 hrs. At some point my buddies barrel disappeared. But just one. His other one that was right next to it is was still there.
Also before I modded my servers, I had placed 3 tents and went to loot more. Crash happened. Worked my way back to the tents and 1 had vanished. Day or so later, they were all gone.
Also just last week I spawned in a bunch of stuff to build a few towers and a big compound. It last like 3 days. Then vanished.