We have been seeing an issue with PDF copies of reports sent via email resulting in broken images or just being entirely blank. However, if you choose to save the PDF to disk, the report saves normally. We have taken a number of troubleshooting steps, none of which have made any changes in the behavior.
Troubleshooting steps taken:
Export charts as image in PDF - Disabled
Disable/Re-enabled Microsoft PDF Printer
At the suggestion of SolarWinds support, run through this KB article
All other file formats work normally, and saving the PDF to disk works, but emailing the PDF results in reports similar to this

Anyone seen anything like this before?