Why in K-1 Worksheet for QBI losses (Sec 199A) in TurboTax 2020, D4, is 2019 QBI field blank (gives ‘not done’ notification)? Calculation? Diff from last year? An error?

If the field is blank perhaps information did not flow from the 2019 return.  Enter a figure in that field.  If you did not have a loss in 2019, enter a zero (0).

perhaps you did not complete the QBI section in the 2019 return.   we can't see your returns nor the k-1's so can't give you a full explanation of what happened

It was not blank in 2019, it does not flow from 2019 return, others are reporting same problem so hope Turbotax fixes this problem soon! Thanks.

I did complete that section in the 2019 return, it does not carry forward, others are reporting the same problem in TurboTax, so hope they fix this problem soon!  Laura