CSS not working on one of my SVG embeds (works on all the rest)

Bumped into another little problem with SVG embeds.

For some reason my CSS isn’t working with the 4 SVG social icons (hero section, bottom left). Works in Sublime/Codepen etc.

Double checked everything & can’t see any console errors (aside from 4 that I already know about). Any ideas?

Cheers,
Will

Preview - https://preview.webflow.com/preview/thecharlesstreettap?preview=89f2a0f3df0eaf9e3497fb1c4fabd496
Live - http://thecharlesstreettap.webflow.io/