Not sure if this is a normal issue of just related to beta4.
The Interaction color of graphic icon does not seem to work when page is Active.
On Hover:
On Active Page
From Documentation:
- Color - offers two options. 1: Base, sets the base color of the icon. 2: Interaction. Sets the icon color when interacted with (on hover) etc. Icons for navigation menus are setup within the WordPress Admin > Appearance > Menus .