Hugo theme doesn't render font awsome provided icons

Hi I wanted to use Beautiful Hugo with my new upcoming blog but I have a strange error with this theme… when I do:
hugo server --theme=beautifulhugo --buildDrafts

It only renders an rss icon provided py Font Awesome but no social icons…

I already reported this issue to the creator of the thme on GitHub:

Maybe someone else knows why the theme isn’t rendering social media icons properly or can provide an hint?

Perhaps you can point me to your source? My guess is that the icons aren’t called correctly in the templating if you’re sure that Font Awesome is being loaded in the browser and effectively showing the RSS icons. Have you checked that the RSS icon is actually an FA icon and not an SVG?