"This item isn't available in your country" showing on isolated apps on isolated devices.
All of a sudden I'm having issues installing apps through Managed Play on isolated devices. When navigating to the app directly I can see "This item isn't available in your country."

The devices are in the US. Location services confirms this, the external device IP is also US based as well. I have cleared cache and app storage of Google Play and Google Play Services. I have upgraded Google Play Services.
The devices are fully managed with manage service accounts. I have reset the account assigned to the device.
I have tried to set the Country manually in Google Play setting but am unable to do so. It does not show a current country. I also see an option for "Switch to the United States Play Store" but tapping on it doesn't do anything.

Any ideas or suggestions here?