I work on a number of InDesign files that are updated every year. Several of them give a message when printing that says "The following fonts are not currently available:" and it names an old version of a font that we use. That version of the font doesn't show up in Find Font, and as far as I can tell it isn't specified in any paragraph or character style. Any ideas why this might occur?
We currently use ID 5.5, but this has happened for years, going back several versions.