Version: Current Steam Stable Release (Runekeeper Update 4)
OS: Windows 10 Home
I am playing Wayward multiplayer with 1 other person, on a LAN connection. We just built a lighthouse, and shortly afterwards a shipper showed up. When either of us selects to open the shipper's inventory, the client is instantly disconnected with the error message: "Your game became out of sync with the server. Try to rejoin?"
After restarting both game clients and tested a second time -- on a fresh launch of the game, the client was disconnected whenever I or they oppened the shipper inventory approximately 50% of the time.