Lost a character during the recent the server crash when i was doing a beaver dungeon when the pre-crash lag started and I ran for the exit.
It crashed right as i hit the exit, and when logged back in I was 3 map screens east of where the beaver den and my boat were (they were near the shore on an area of shallows) in the middle of a huge lake with no nearby shallows or land and no dungeon and died before I could get to safety.
not sure how helpful that is in finding the problem, but i do hope you can fix it to prevent future occurrences.