Button Shortcode in Slider Revolution not displaying properly

Button shortcode where icon is specified (eg. [button title="See the project" icon="icon-code" icon_position="right" link="#"  color="#fff" font_color="#fff" large="1"]) does not display properly.

A button shortcode without icon (eg. [button title="See the project"  link="#"  color="#fff" font_color="#fff" large="1"]) displays just fine.

It appears there may be a css issue.