I am consistently experiencing a total character wipe and re-spawn. Logging off in perfect health - no wounds, sickness, or critical hunger or thirst and logging back in to a new character.
I cannot pinpoint the precise reproduction steps. I can sometimes get approximately 3 joins and play sessions in before it happens, but inevitably it does happen. At some point I login as a new character and then when I drop back to the main menu realize that this new character has overwritten my "real" file.