Recently update to from DNN 6.2.5 - 7.1.2 on an Azure Website and have noticed the Profile Definitions are unavailable for every non-Host user account.

Register Users:
The Manage Profile Tab fails to render within the ViewProfile

Site Administrator:
[Site]>User Accounts>Edit User Accounts>Manage Profile fails to render

Host Account:
The Site Settings>Advanced Settings>Account >Profile Setting
The Default Profile Visibility Mode is set to AdminOnly,
The Display Profile Visibility is set,
The Profile Property table is empty

I have looked the installation logs. Each log is empty. I have opened the ViewProfile module code.

ViewProfile.ascx.cs

The code behind references System.Linq as such the Cast was failing at approx line 153. possibly need to reference the System.Core

if (ProfileUser.Profile.ProfileProperties.Cast().Count(profProperty => profProperty.Visible) == 0)
{
noPropertiesLabel.Visible = true;
profileOutput.Visible = false;
}
This is as far i have gotten into it. Any suggestions are appreciated.