Gnome3 Tweak Tool fails to change icons

I am on a fresh install of openSuse Leap 42.2. When i open the Tweak Tool utility and attempt to change the icon set nothing happens. Default gnome icons seem to be spot welded in place. Thanks in advance for the help!

I don’t know if I understand your problem: you open the tweak tool, choose an different icon set and applied it, but the system doesn’t change. Is it?