Severity 3 message in Panorama managed Prisma Access for reports. mail send: attach file found:/tmp/pdf-email-scheduler

[jsnowden]

We receive emails for our reports but content is empty.  (PDF,CSV, etc..)  At the same time the reports go out around 2am (Central Time), we get a Severity 3 error message : mail send: attach file found:/tmp/pdf-email-schedulerxxxxxxxx
This is for every custom report we create.  When we generate the report locally on Panorama it works with the proper report data. 
We are running Panorama version 10.1.5-h1