Bug where the fireplace immediately gives a status of hypothermia. I tested this across 3 characters on 3 different servers (2 private 1 public) with the same result each time.
The result of each was a number of status messages of "You are freezing" followed by a gradual hazing of the screen then death after a few minutes.
No amount of running, swapping clothes or being near the fire was able to warm me.
I did not experience this in 0.53 or 0.52