I was traveling south in a boat at full health when suddenly my health was gone and it said that I died of becoming an ice block. I have traveled south many times previously and noticed the snowflake icon flashing in the upper left corner. It may be accompanied by the 'I'm Cold' appearing in the bottom left, then the 'I'm Freezing' text appearing when it starts to do damage. Then it takes a while before all my health is gone before dying. This, however, was instant. No sign of things cooling off at all. No rough weather and no white ocean bottom. Not sure what triggered it. I was following a bird.
