First of all, as someone who has just started playing this game since it released on Xbox Game Pass last week, this game is so fun. I've been playing with my son, quietly building a settlement and making our way through the world.
Twice now, we've logged in only to find all trees, buildings, creatures, gone. Just grassy fields and water. Very disheartening. After our second attempt at a settlement disappeared, I was able to load up an old version of it (apparently?), so we only lost 2 days worth of work rather than everything.
My question is this: Am I doing something wrong as far as logging out / not logging out – or saving / not saving – when we're done playing? Or is this just a weird bug that has to get worked out.
I can't say I'm thrilled to keep progressing right now if at any moment everything disappears….hopefully they get this bug sorted out soon.
Source: https://www.reddit.com/r/valheim/comments/11xmva2/xbox_all_trees_and_buildings_gone_twice/