I have installed a font called “product-sans” and assigned it to various heading and body elements. When I view an existing page/post the font is applied.
However, when I start to edit a new page/post the new font does not appear in the Font Family drop-down box.
Also, when I view text in the editor (using Visual tab) it does not appear in the font that has been assigned to it. (Despite the fact that when I view the page/post it is in the correct font.