Is TurboTax filing form 8606 wrongly? Should line 2 (basis) include all after tax contributions from prior years? TT has not been carrying-over prior year contributions.

Made 1st after tax contribution in 2014 of 5500. TT filed 8606, line 14 showing 5500 total basis (correct).
Made 2nd after tax contribution of 6500 in 2015. TT filed 8606 with line 2 showing 0, line 14 (total basis) = 6500. Same for 2016.