Where it stands now, I can play from the USB and web radio, however there are two big issues.
I have to keep the UI web window open at all times. If I close the window and reopen it, it goes back to the empty library and spinning play wheels.
If I ever go to a menu page, same result as closing the UI.
The fix for both of these issues is to go to the library page and reboot. As soon as the reboot starts, I see all the correct library items. Also, when it comes back online, I have full control again.