Font Awesome Pro Plugin Not Changing All Default Icons

I’ve had the Font Awesome Pro plugin installed and it’s not changing all the fonts used by default by Discourse.

For example:

The older topics about the plugin don’t have any guidance on this specific issue that I could find. I thought maybe it was a FA5 vs FA6 naming issue but that’s not the case with fa-layer-group, fa-comment, fa-inbox and others that are not displaying the ‘fa-light’ variant of the icons.

Any tips or tricks? Thank you.