Your 1099-NEC might not be linking to your Schedule C as Self-Employment Income.
Try deleting your 1099-NEC and then entering it directly in the Business Income section.
Click this link for instructions on How to Delete a Form in TurboTax Online.
Then type 'schedule c' in the Search area, and click on 'Jump to schedule c'.
EDIT your Business, then choose 'Add Business Income'. On the next page, you can re-enter your 1099-NEC.
Click this link for info on Reporting Self Employment Income.
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