Issue Summary:
Players may experience their raft has vanishing after sleeping or saving the game. The most common report of this issue occurring is when a player returns to their island (which may have an established base or large collection of items), leaves their raft and sleeps/saves immediately.
Workarounds:
Unconfirmed: When returning to your island, especially if you have a significant number of items there or experienced lag on the way back, do not sleep/save immediately and if possible stay near your raft for a short while. The workaround for lag and crashing when saving - Staring at the sky for up to 5 mins to allow everything to catch up - may work in this situation.