But even better due diligence would have been to download the 30 day free trial to test the application out before spending any $$.
What you report sounds like a known issue in FileMaker and there is a way to work around it.
For More Information see: Records with a PDF file linked to an active container field cause FMP 12 to crash in OS 10.9
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
Yep. I downloaded the free trial, so I was aware of the Acrobat PDF bug before buying. I went to the link you referenced and that seemed to fix the problem. I've since removed all Acrobat plug-ins from my computer but I'm still having this same problem with Preview.
I know that I can make this work eventually. I just thought that with an Apple product I'd have a better user experience. That experience is yet to come I'm afraid.
Then this would appear to be a different bug and one to report in Report an Issue to find out what the TS personnel have to say about this issue.
Several things to check first:
Make a completely new file (don't copy and paste anything from an existing file). Define a container field without optimization for interactive use and insert a PDF into it using Insert File. Then put a copy of this field on a layout, optimize it for interactive use and insert the PDF into it.
If this works in this new file, there's an issue with your existing file. IF it replicates the same behavior, then this looks more and more like a bug.
It's also a good idea to try inserting multiple PDF's from multiple sources to see if this happens with a particular PDF or PDF's with some common element.