I am having the same issue. I have already received my refund, but shortly after filing I received an additional statement for mortgage interest from a previous lender that I was not aware of, so not all was included on the initial return. I recalculated on the desktop version about a month ago and it reported that I was due an additional $1300, but the amendment forms weren't ready. I did not alter the file after that, but when I opened it today, the heat pump water heater credit was gone and the software says I owe $150 instead of receiving the additional $1300.
