I have a Community built in Community Builder that uses lightning components and the Lightning Design System css & asset package.  I am using one of the svg icons from the SLDS assets, and it's working fine in the sandbox (the published community in the sandbox is rendering the icon as expected).

However, now that the community is in Production, the published pages are not displaying the icon, and I'm getting a 404 error when the page tries to load the asset: "https://myclientsorg.force.com/resource/SLDS0122/assets/icons/custom-sprite/svg/symbols.svg "  This is the path to the asset that's failing to load.  However, I'm using the CSS from the same package, so it's just the svg symbols that aren't showing up.

Can anyone provide any insight??