I have used DocuSign for TY 2018 two times in the past 7 days and it works flawlessly as it did all of 2019.  In fact, TY 2018 and prior tax years have always worked just fine as I have been using it for about 5 tax seasons now.

This new DocuSign integration for TY 2019 was working fine up to around March 12/13th when there was a ProSeries update that put it into a tail spin crashing to earth!