It has been suuch a cumbersome process to do exactly what Sketch Icons does. This also happens to be one of my first products tried on Product Hunt and has definitely given a warm welcome :)
When importing line icons or solid filled icons, it works like a charm, but if you want to import, say, a flat line icon set that has fill and stroke colors, it bugs out and doesn't import it correctly at all.
Thanks to creators for the plugin! Thanks to Pablo for opening it for me.