InDesign Book / Actual page numbers don't match book or document page windows

InDesign Book: Chapter starts on right-hand page but displays an even page number

I'm working with an InDesign Book containing multiple chapter documents.

In the Book panel, Book Page Numbering Options is set to Continue on Next Odd Page.

Example:

• Chapter 9 ends on page 61.
• The Book panel shows Chapter 10 starting on page 63.
• The Document panel shows Chapter 10 starting on page 63. 
• However, when I open the Chapter 10 document, its first page is a right-hand page displaying page number 62.

I've also seen the same behavior in other chapters when the previous chapter ends on an odd/right hand page. 

Things I've already checked:

• Automatic Page Numbering is enabled.
• Document Chapter Number is set to Automatic.
• The page number is an automatic page-number marker.
• I found and removed one rogue section, but the problem persists in other chapters.
• The affected pages are right-facing pages but display even page numbers.
• Updating all numbering in the Book does not change the page number.
• The parent page is correct / set to “current number”
• I’d rather not uncheck “automatic page numbering” and manually set the page number. and that may be my best work-around. (?). 

My question:

Why would a document in a Book display an even page number on a right-hand page when the Book panel says the chapter should start on the next odd page? and the document says the chapter starts on a right handed page with the correct number, but the actual number in the header is wrong? What setting could cause the document numbering to disagree with the Book numbering?