React FontAwesomeIcon only works when icons are explicitly imported

[rwb196884]

<FontAwesomeIcon icon={['fab', 'twitter']} />

does not work, but

import { faTwitter } from '@fortawesome/free-brands-svg-icons';
...
<FontAwesomeIcon icon={ faTwitter } />

does.

[reinrl]

@rwb196884 Per the official documentation, you need to either use dynamic icon importing or add individual icons explicitly (what your second example above illustrates). Without one of these two options, I don't see how your initial example could work?