I’m sure this isn’t a big deal because by the time you get to this complex of a network, you would most likely want to have custom content filter profiles setup for your separate zones, but I added a second green zone:
…and the default profile did not apply to it. I got this error no matter where I browsed:
Until after I added this content filter profile:
Now everything works fine. Just thought I’d bring this to the devs’ attention.