If you look at the bottom of Form 7206, you will see this message: "A self-employed health insurance adjustment of $X,XXX.00 from premiums paid through an exchange is included as an adjustment to income but does not appear on these worksheets."
If you add that adjustment to the SE health insurance premiums you paid, you will arrive at the number shown on Schedule C and Schedule 1 Line 17.
TurboTax doesn't include the underlying calculations for this number, which is based on the information from Form 1095-A and the PTC repayment from Form 8962.
This post has a long discussion of a similar situation, in case you're interested: 1095-A and Self-employment Medical Insurance Deduction.
If you need additional assistance, consider upgrading to TurboTax Live for guidance from a tax expert.
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