For Primary Menu I have Desktop at 16 px with Tablet and Mobile at 24 px. I did this in Customizer by just changing the icons at the bottom of the page and Publishing with each font size setting. All works perfectly. But when I try to do the same thing with Secondary menu, it will only save the most recent setting, so all fonts are either 16 px or 24px.
How do I get them to work independently, as I did with Primary Menu?