Yes, I have the same problem with a mortgage that was sold to a new lender. If I enter a single lender and the combined amount of interest, with initial and final principal for the year, my refund amount is quite a bit higher than when I enter both 1098s separately. This is clearly a software bug and needs fixing soon, or I'm dumping TurboTax, using a different product, and getting a refund from Intuit, since they supposedly claim to give the biggest tax refund or your money back.
