You can contact Support (link below) during regular business hours.
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
However, I strongly suspect that there will be a future release (or more than one) that will resolve this, as well as a couple of other issues, with the 1120-S module in the program.
If you enter Forms Mode, open your Form 1120-S, page 3-5, scroll down to the Shareholder Distributions and Dividends Smart Worksheet, you may notice that any figure you insert in that "A" box is highlighted in red. That, more or less, indicates there is an issue with the entry (which there should not be) so, clearly, the program is not quite ready for final preparation and filing.
