Self-employed client paid himself a salary.  He withheld Additional Medicare tax on his salary in error.  Line 24 of form 8959 for the Additional Medicare tax withheld is showing the correct amount, but is not transferring to line 16 of 2018 1040, and the 8959 form is not showing in the forms in use.  How do I get the amount to transfer to the 1040 without having to override, and therefore not allow e-filing?