Endnotes and back matter headers in MS Word 365

[mapguy]

My nonfiction manuscript is in MS Word 365 with 28 pages of endnotes at the end of the last chapter. How to separate endnotes into its own section, so can set "Notes" as the header for those pages. Currently they inherit the odd/even headers of the last chapter?



Each chapter is its own section with headers set to Different Odd & Even Pages: part title for even page headers, chapter title for odd page headers.

A related back matter header problem: I have successfully created new sections following the endnotes for the Bibliography and Index. I successfully set the the odd number pages headers in these sections. However, they inherit the last chapter's even number pages header, despite turning off the Link to Previous setting. All attempts to disable Different Odd & Even Pages in these two sections also disable the Different Odd & Even Pages headers setting in all chapters of the book. What am I missing that would fix this?