This is not necessarily a FileMaker issue. When generating a PDF in FileMaker, the PDF is generated (Perfect). However, in you try to Print that PDF from Adobe DC Reader or Standard, it may not print from a Windows PC. Depending on the printer you are sending it too. In my clients case we are printing to an HP-M553, any PDF generated from FM will not print to it. I will see the job go to the printer. If I print to a different HP printer it will print. If I print a PDF not generated from FM, it will always print to that HP-M553. Workaround is print to another printer and get some exercise and go pick it up down the hall. :-)
I am doing some more testing, but I want to let people know about this issue.