I saw someone report this over in the ProSeries Facebook group....is this what you're seeing?

"The latest ProSeries update pushed out changes impacting tax calculations for returns with Form 4952. The software had been incorrectly using the Qualified Dividends and Capital Gain Tax Worksheet for returns with Form 4952. They corrected this to use the Schedule D Tax Worksheet - any returns that were waiting to be efiled have likely been changed."