No NOL (or any type of loss) on this one, only interest and dividends...maybe that's why the error disappeared for me?  By the time I was done entering the income the error was gone and I efiled without any issues.

@IntuitAustin  do you see any other reports of this from phone support?  I know someone in the ProSeries FB group had this same issue and was on the phone with support 2 days ago...not sure if she ever got any solution though....she hasn't replied back in the FB group.