I was waiting for the 8960 error for folks with 1099 forms to be fixed before submitting my form, and now that the 8960 error has been fixed, I tried to e-File my form, but TurboTax would not allow me to e-file because I had duplicate D designated entries (1 for current tax year, and another for prior year catch up contribution).
After reading similar threads from prior year, looks like this is just informational material that doesn't show up in its broken down form on the actual tax return forms so I just added the 2 D-values together and over reported for this tax filing year
