🚀 go-pugleaf

Kathryn,

If you know that you aren't using these fonts anywhere in the file(s),
then you can change the Preferences to turn off the "Remember missing
font names" option. Open all of your files and then re-save. This will
make the substitutions permanent. You can then re-generate your
book(s) without encountering this error.

However, if you're working with the files on multiple machines and
don't have the fonts on one of them, then this will really mess things
up. In this case, make sure that you have the same fonts on all
machines.

A quick & dirty is to first open all files in the book (press the
shift key before clicking on the File menu to get "Open all files in
book"), acknowledge the error messages and then regenerate. Since the
files are already open, then FM won't give the message again for the
current session.