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I was able to access your sanitized file, and admit that I could not figure out what was happening. I deleted your sales entries and made two 1099-B entries with an amount in Box 1f; one with Cost Basis equal to Sales Proceeds, and one with different amounts. In the interview entry, check the box for 'I need to enter amounts from Box 1f..' and enter the Box 1f amount as a negative number, with Code D (screenshot).
This created a Capital Gains Adj Worksheet, which shows the amount of Box 1f as an 'Adjustment' with Code D in Part II. The Code DM in Part I refers to the fact that a manual entry with Code D was made (screenshot).
However, in FORMS, an error shows for each of the Capital Gains Adj Worksheets (click on Errors at the top to see it pop up at the bottom of the form) stating that 'accrued interest requires a value when Code D is entered as a manual adjustment code' (screenshot).
The adjustment amount needs to be manually entered in Part IV, Accrued Interest to Schedule B (screenshot).
This places the interest properly on Schedule B and the Capital Asset Sales Worksheet and Form 8949 are also reporting correctly (screenshots).
I would suggest deleting the entries you made with Box 1f amounts, and re-entering them.
