In Lacerte if you re-export the K-1 from a Partnership or S-Corp after you have previously done an export the software does not always remove all items that no longer apply.  I was having problem figuring out why my QBI income was approx. $180K less than income on K-1.  Turns out when I changed from Sec 179 to Bonus depreciation Lacerte still had the Sec 179 in the K-1 screen Line 17.  I needed to either delete the erroneous Sec 179 OR delete the whole K-1 and re-export from the 1120S.  Worked like a charm.  Right QBI income.