TurboTax technical support had no direct solution, but they did offer a workaround. By listing the individual sales as noncovered, even though they are covered, it forces the software to generate the desired 8949.
So, I will do that, white out the "noncovered" check box on the printed form, and manually check the "covered" box.
I understand the comments that form 8949 may not be necessary in my situation, and that I could attach my brokerage statement instead, but I don't want to do that. I like having the individual sales listed on my form.
