This Best Answer states:
Upon review, instructions to Form 8960 require the inclusion of 1040 Schedule 1, items 3 and 5, in Form 8960 item 4(a). As such, this is not a Turbotax issue.
See instructions to Form 8960, page 6 - https://www.irs.gov/pub/irs-pdf/i8960.pdf.
That said, I reviewed the IRS website for known issues and solution dates. The issues is known by the IRS and there is a resolution date of 2/5/2023. Once fixed by the IRS, we should all be able to file.
Do you actually have IRS form 8960 included in your tax forms?
@grib79