One face not showing up

[bobroosth]

I have been working on a 150 page document for months. One font in use Garamond Premier Pro. Right now the Regular face is not showing up, EVEN THOUGH Creative Cloud Fonts says it is installed for Adobe and other apps. All 33 other faces are listed, just not Regular! And this is happening on two computers, both Windows. All CC apps are current. On one page the document is requesting Roman, not Regular.

The real mystery is that much of this book has not changed in many weeks and I never had this font issue before this week. 

[Bobby Henderson]

Is the error with the regular face of Garamond Premier Pro happening in an Adobe application or a graphics application made by another company?

These trouble shooting steps can often fix problems with type families added/installed via Adobe Fonts. First, try simply removing the type family and then adding it again. If that doesn't work try signing out of the Creative Cloud account, rebooting the system and then signing into the account again. Finally, if that doesn't work try deleting the font data cache file to force the computer to re-build it.
https://helpx.adobe.com/fonts/kb/troubleshoot-fonts-illustrator-indesign.html

Hopefully one of those steps will solve the problem.