My farm plots, anything ive put on the ground; Fire place, weapons, tools, whole backpacks disappear. The only things that remain are the fences ive put up. In a game with limited inventory and sparse supplies I need to be able to stockpile stuff. At least keep the farm plots which take time to grow. Ive built in a place few people explore and im still losiing my stuff, all of it whenever i log out even if only for an hour or so. The only stuff i keep is on my person.