Hole in the ice refreezes when temperature scale is on red.

[JP_Finn]

If the temperature scale shows 0C 32F as the center line. Above freezing in red and below freezing in blue; then it's bugged. Got couple pixels worth of red and the ice re-freezes, in few hours.

Save available.

[PALU]

I've seen that many times throughout the years, but haven't bothered reporting it.