Value for [deleted] must be a boolean or null

Hello,

I am trying to upgrade our up to 6.5.0 using Mobile Application Configuration Service. Everything is pre-populated as it should be as I have created the app before and I am just upgrading to the latest version.

On the App Customization section I am getting an error when I click Next;

All the fields are populated as they should be and are the same from previous builds, so I am unsure why I am getting this error.

What is causing this error and how can I resolve this?

Thank You

Sayfur