For 2019: Form 6252, Part I, Gross Profit and Contract Price. Complete this part for all years of the installment agreement.  

For 2018 and prior years: Form 6252, Part I, Gross Profit and Contract Price. Complete this part for the year of sale only.

So, PS is picking up Form 6252, Part I, prior year sale info and including it as a current year sale?  If so, that is a problem that PS needs to fix pronto.