why is smart group including refs/PDFs MISSING key criteria?

I usually do searches and if they work convert them to smart searches.  I also create searches to make groups and then combine the groups to get what I want in a final group.  

The “go to” (basically the find tool since ctrl F does something different in endnote) only works once you open a record.  I also don’t now if it “goes to” the match in the PDF though…