I have the same problem from this original post. I'm using the desktop version of TurboTax for tax year 2021.
In the "Deductible Home Mortgage Interest Worksheet", on line 20, I see a value of "$19,754" which seems correct. I believe that value is supposed to be directly entered into Schedule A, line 8a. However, on Schedule A, on line 8a, it's showing "$15,833". Is that a bug? Or am I missing something?
