Sounds like a known issue first reported for FileMaker 13.
For More Information see: http://forums.filemaker.com/posts/9b3a2c7571?commentId=266047#266047
This is one of many acknowledged bugs that can be found in the Known Bug List thread here in the Report an Issue section of the forum.
It can also be downloaded as a database file from: https://www.dropbox.com/s/jt09b82i0xijbu3/FMP%20Bugs.zip
Thank you for your post.
The information from PhilModJunk is correct (Thank you!). In essence, under Windows only, an Interactive Container field with a PDF file inserted will not display contents in Preview nor Print.
I have attached your post to the original report. When more information becomes available, I will post again.