I also had a return with no credit for the self-employed taxpayer.  I went in and removed the link between the ACA and s/e income, manually entered the premiums on page 24, then had to put that same number as an insurance reimbursement under medical expenses to not have a duplicate deduction for the premiums on Schedule A.  Was able to e-file the return after that.  After all these years with the ACA, you'd think they would have fixed this calculation issue by now.