I have a LaTeX template I created for use with org-mode, to export to PDF via LaTeX using xelatex. 

I don't edit LaTeX directly, I just generate from org-mode. This works perfectly for me except for one thing: it only works when I have heading numbering turned on. 

When I turn numbering off in org-mode, by adding this line to my org-mode file...

    #+OPTIONS:   num:nil

...LaTeX no longer recognizes my headings as headings. This creates two problems: 

1. The Table of Contents is blank.

2. The \leftmark in the heading shows up as "Contents" instead of showing up as the title of the section. 

How do I modify these org-mode preferences such that my I can turn heading numbering off in org-mode while still correctly generating a Table of Contents and adding my section title to the header?

I'm sorry, but I don't know enough about LaTeX to make a minimum representation of this. I have no idea where the problem is. 

Here are the org-mode preferences in question: 

Thanks!