On the "Other Interest and Dividends" screen, where the box is checked, if you click Continue does it take you to a "Seller-Financed Interest Summary"? If so, click Delete for any interest payment that is listed, then confirm the deletion. When you go back to "Other Interest and Dividends" the box will no longer be checked.
Alternatively, on the screen "Your 2024 Income Summary," under "Interest and Dividends," click the Start or Update button for "Interest from Seller-Financed Loans," then delete the entry there.
Make sure your desktop software is up-to-date. There is a new update today.