There is likely nothing wrong with your entries.
Lines 6 through 12 are blank, indicated by asterisks next to lines 13 and 15 and a note at the bottom of Part I, because TurboTax is using Worksheet 1-1 of IRS Pub 590-B to calculate the taxable part of your IRA distribution:
https://www.irs.gov/pub/irs-pdf/p590b.pdf
If the IRS questions your Form 8606 you'll need to provide them with a copy of this worksheet by printing it separately from TurboTax. (Apparently some professional tax software automatically includes this worksheet with the filing when used, but as far as I know TurboTax does not.)
