Frost Walker Ice doesn't always melt

some areas of water never unfreeze from Frost walker effect even after a week or more of real time it seems to be intermittent whether the ice melts or the ice stays I've tried putting touches near the ice but after a week in some places there's been no change 

As of today 5-2-19 there are still small areas in my base that have ice in them do to the frost walker effect even though no one has frost walker boots anymore