In windowed mode, if you select guild manager from the window selector bar, and scroll up and down while in guild manager, my game instance crashes to desktop. No warning , no freezing, just gone.
Figured out it isn't just me , and having the guild manager open and scrolling was just a coincidence. A lot of people are having the same issue on a different thread.
This has been happening to me as well. Sometimes I am just standing in guild lobby or hall, and sometimes I am out and about doing things (hunting, fishing, foraging, etc.).