I've noticed it twice of the last two days.  Today, I've got a MFJ client that didn't get anything last year because prior AGI was too high.  2020 AGI is $178,400 which should get them $980 for the first stimulus.  ProSeries is calculating the $980 but is dropping it into line 17 instead of line 21 of the worksheet.  Yesterday is a single person with a similar scenario.