When you do both a nondeductible traditional IRA contribution and a traditional IRA distribution in the same year, TurboTax sometimes needs to do the pro rata calculation on Worksheet 1-1 of IRS Pub 590-B instead of using lines 6 through 12 of Form 8606. This is indicated by an asterisk next to lines 13 and 15 of Form 8606 and this worksheet being present in your tax file.
