CANNOT OPEN Substance Source in 4.23.0

Upon clicking the “Substance Source” button in the Editor Toolbar, it just plays the animated Substance Source logo, but never comes to the site where you can login. Does this mean I can no longer access the free Substance files for Unreal Studio? Thanks.

It works correctly now after updating to 4.23.1 and updating the Substance Source and Datasmith plugins accordingly.