PDF Line Overlap after Update to Latest version of Acrobat Pro 2017

We create pdfs in mainframe batch jobs using SAS.  These pdfs are landscape with Courier font-type and font-size of 9.  Recently we updated Acrobat Pro 2017 in response to Adobe's Security Bulletin, https://helpx.adobe.com/security/products/acrobat/apsb19-49.html .  Those same pdfs now show line overlap as if the font-size were increased in the creation of the pdf, but there has been no change to our SAS code.  Is it possible the new version of Acrobat Pro 2017 is causing this overlap?