Missing my Apple Chancery font in Pages/iWork

The Apple Chancery font is missing from all of my iWork apps, and yes, I looked at the bottom of the font list and everywhere else in the list. Apple Chancery.ttf is listed in my Font Book, in black not gray, and it validates, and shows no indication of any problem with the font. Apple Chancery shows up just fine in my Adobe apps such as InDesign. I can't find any way to make it available in Pages 7.3, even though it used to be in Pages and was one of my favorite fonts. All of my apps are up to date. This problem is the same on my iMac with macOS Mojave 10.14.2, and on my older MacBook Air with macOS High Sierra 10.13.6. How do I get Apple Chancery back in my Apple apps?