My mistake, read the version incorrectly. Bit of a sunburn brain going on here after spending too much time outside! lol.
Have reviewed your install again. Navigate to a users profile then switch to default Joomla protostar template. Next refresh the page. The icon then displays fine. This confirms the issue is caused by the Joomla template. I however didn't see any CSS that could be conflicting. The only thing that could be causing this then is your Joomla template is overriding the FontAwesome font-family. Was able to find where it is doing exactly that as follows.
IN: /templates/wt_blank_pro/styles/Copernical/css/theme.css
ON: Line 3920 - 3925
Code:
@font-face {
font-family: 'FontAwesome';
src: url("../../../warp/vendor/uikit/fonts/fontawesome-webfont.woff2") format('woff2'), url("../../../warp/vendor/uikit/fonts/fontawesome-webfont.woff") format("woff"), url("../../../warp/vendor/uikit/fonts/fontawesome-webfont.ttf") format("truetype");
font-weight: normal;
font-style: normal;
}
Removing the above resolves the issue. They're either loading an older or newer version of fontawesome. If they're loading v5 then you'll need to be sure the fontawesome shim is loaded to provide backwards compatibility. If they're loading an older version it needs to be updated to latest v4. Since the templates CSS is loading after components CSS (odd load order) we can't override it or do anything about this.
The shims can be found below. Good news is looks like they now offer a CSS based upgrade shim so it certainly makes it more possible for us to upgrade CB to v5 soon.
fontawesome.com/how-to-use/on-the-web/setup/upgrading-from-version-4#shims
I don't know what more to suggest beyond contact the developer of your template.
krileon
