PA 1099-R problem Income should not be taxable

I have a problem with my PA income tax PA-40.  I have 2 identical 1099-r forms. One for 2018 and one for 2019.  I keyed them exactly the same. Last year the income was not taxable for PA this year it is taxable.

The form for both years has a code 7D in box 7 and a blank in box 14 for state distribution.  Why is it taxable in 2019 when it was not in 2018?  On the PA schedule w-2s for 2018 the code in column B is an I and on 2019 PA w-2s it is a K. Why? Is the 2019 tax software wrong?