Box 20AB from K-1 is not being reported on tax return.

[MAC18]

I have an amount in box 20AB from a K-1 that represents the amount of my section 751gain from a sale of my partnership interest that is to be reported as ordinary income.  This amount should go to Form 4797, part II, line 10 but it does not.  It is nowhere on my return.  I entered the box 20AB amount when I entered all the numbers from that particular k-1.  How do I get the ordinary income piece to get properly reported on Form 4797?

[DavidS127]

In 2019 TurboTax, for a Form 1065 (Partnership) K-1, you use box 11 with a code of I (e.g., India) to get your Section 751 gain or loss to Form 4797.  After you enter the code I and the amount, the next screen is Enter Code I Detail.  Make the "751(b)" selection, and then a box will open for you to enter the Section 751(b) number.