Why is the Schedule F loss being suspended and not allowed; and not being claimed against Schedule C income

[JeffCPA]

In 2017 and earlier years, my client had net positive income on Schedule C, and would have a net loss, negative income on Schedule F.  The negative loss on Schedule F would be applied against the positive income on Schedule C, to reduce the overall net income.    That is not happening this year.  Why is that.  When I look at the worksheets etc. for Schedule F, the loss is being suspended, but yet for QBI income purposes the loss is a negative number.    This is very odd.   What is going on here. 

[sjrcpa · Accepted solution]

Basis limitaion for Schedule ? At risk limitation? Passive activity?

[Marc-TaxMan]

My loss on 1040 F flows to Sched 1, line 18 as a loss.
Also, I think it's supposed to track for QBI, like a nol but only for QBI.