Entering it on S 14.1 *does* flow to the return but it doesn't flow to a C, or E, or anywhere but Sch 1, and then to the F 1040.  Where are you expecting it to flow to?

And, if you enter income there that is QBI income, Lacerte doesn't do the math.  I'm guessing because if you don't think the income is business related, the QBI doesn't apply.