In TurboTax Desktop H & B, I entered a sale of personal items (for a loss) through the 1099-K screen.
I then updated the 1099-B entries. The screen following Was this a sale of employee stock was the screen Select any less common adjustments that apply.
I selected Any loss from this sale is not deductible... and This is personal use property...
The loss of a personal item sale was correctly reported on IRS form 8949 / Schedule D Capital Gains and Losses.
@PeggyH3
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