RSS icon not showing correctly in specific places

Hi, I had this problem previously and it was fixed, but now it looks like since the update the bug is back for my site: http://armchairarcade.com/perspectives/ . The RSS icon doesn’t show in the “About” box when a user posts, i.e., the icon is just blank. This also applies to looking at a Team Member in the About US section. You can see an example here and here. This does not involve shortcodes (which I’m not using), but the default icon usage in those places.