We’ve also been noticing this on our island (3469-7377-0976) with players reporting lost data more and more frequently in the last couple of weeks. This is particularly challenging given our map is in the RPG genre and relies on ongoing progress through levels and achievements.
Similar to above from Bloom, this seems to happen more frequently when players are unexpected disconnected (game crash, power loss, console hard reset).
When the verse data is lost, it’s often accompanied with device-persistent data like loadouts and resources being lost too.