Hello.I recently inherited a library of FM books and I am using FM 2017; it is the first time I am using FM on a regular, in-depth basis.In one of the books, Table of Contents does not appear in the header on the table of contents pages, even though the Running H/F 10 variable appears in the header for the master pages used on these pages. When I manually define the Running H/F 10 variable as Table of Contents, that text appears fine in the header.Before I changed it, the Running H/F 10 variable definition was:<Default ¶ Font><$paratext[TOC_Title,AppendixHeadingRepeat,AppendixHeading 1,Heading 1]>Which I believe is consistent with the other books.As the Running H/F 10 variable is not used anywhere else, manually defining the variable with static text is an acceptable workaround with no negative consequences, as far as I can tell. Nonetheless, I am curious as to why this is happening and how to resolve it.Any advice would be appreciated.