You are using loadCSS to load the font from google fonts. loadCSS is designed to asynchronously load a stylesheet. Given an asynchronous load of the font, I&#x27;m not surprised you&#x27;re seeing occasional FOUT. You should adopt the recommended &lt;link&gt; tag technique for your webfonts, unless you&#x27;re willing to follow the more advanced font performance &#x2F; FOUT guidance from Zach Leatherman.