Just purchased this plug in and having the same issue with WP v3.9.1.
I have location rules set to display the field group if “Options Page” is equal to “Options”. The publish box shows up on the options page but the fields do not. Switched to 2014 theme to test but got the same results.
Any resolution to this? I see that the post above is two weeks old.
Solved my issue. It seems the Style cannot be set to “Seamless”. It must be “Standard” or the fields don’t display on the Options page. Also, conditionals don’t seem to work on this page. That feature really cleans up the interface but I can live without it.