TurboTax keeps asking for fixing errors and doesn't allow electronic submission because my schedule K-1 has code M but no code F for line 16

My schedule K-1 has code A, B, C, M, and AA for line 16. A is OC, B and C are the same, M is a deduction on legal fees, and AA explains NON-ECI for current year.

 

I am US resident so this should be considered as US source income. There is just no code F for line 16 so I am not sure why TurboTax keeps asking for fixing errors on code F and also doesn't allow electronic submission?

 

btw, according to instructions for Form 1065, codes M and F for line 16 are 

 

Line 16m. Passive category (code M).

 Enter the amount of deductions allocated and apportioned at the partnership level to passive category foreign source income (defined in the instructions for line 16f).

 

Line 16f. Passive category (code F).

Passive category foreign source income. This category includes the following income.

  • Passive income.

  • Dividends from a domestic international sales corporation (DISC) or a former DISC.

  • Distributions from a former foreign sales corporation.