if k-1's - delete all 199A (QBI) info entered in sections d1 and d2 of the worksheet. note if there are losses then not entering QBI info could cause tax problems because any net qbi losses must be carried forward to offset future QBI income (only in qbi income exceeds qbi losses). for schedule c and other forms there is a question about it being a 199A business this must be unchecked.
don't know how much is involved but you could be losing a decution of up to 20% of the income.