IRA Calculator tool bug?

[FL88]

So I was using the "Play with your contribution" feature.  I entered the max contribution value.  The weird thing is Deduction and Savings columns show $0, but bottom lines should a higher refund value.

I then proceed with next steps/screens to actually add the $6500, but the refund stays at previous value, not the value shown above "Your new bottom line".   Bug?

[dmertz]

If your tax return includes a distribution from your traditional IRAs, a nondeductible traditional IRA contribution can reduce the taxable amount of that distribution.  However, TurboTax may not yet have the year-end value in your traditional IRAs needed to correctly calculate the change in your refund or balance due.