I'm using tinyMCE, and I set the value of my font-family and font-size, through the function:

setup: (editor) => {
  editor.on('init', (ed) => {
     ed.target.editorCommands.execCommand("fontName", false, `${this.request.reportFontFamily}`);
     ed.target.editorCommands.execCommand("fontSize", false, `${this.request.reportFontSize}pt`);
   })
}

With that he starts with the values ​​I need. But when I click anywhere in tinyMCE it sets the font to sans-serif. This happens even though I manually select the font.

So whenever I click on any part of tiny, it will set to sans-serif.

Can anyone help me with this?