I haven't played Valheim in about a year, so a buddy and I decided to make a new world and characters and see what new stuff was in. We played for a while, beat the dear god and got a bunch of copper before we decided to call it a night. The world 'autosaved' like five minutes prior, but there was no manual save button. So I closed the server. I logged on today to find that the world had been wiped. Well, not completely though. Our house and chests were gone, but I woke up where our house was. Furthermore, I could see the map where we explored. Even stranger, there were my previous death markers for day 7 and such, but the game said it was day 1. I'm so confused here. I checked out the save files, and all of them were modified today but [savegame].fwl.old file, which seems to have been modified at the time we called it. Is there anyway to save my world from this file alone, or did we blow a whole day? What happened and how do I prevent this from going on in the future?