Powershell: Checking a checkbox is not working. Debugging looks fine

$GetLockoutStatus = Get-ADUser -Identity $WPFnamelookupbox.Text | Select-Object Enabled
    if($GetLockoutStatus -eq $true){
        $WPFlockedaccount.IsChecked = $true
    }

The issue I have is that the checkbox does not seem to be getting checked. I can run the powershell command manually just fine and it shows that the account is enabled but not happening visually with the checkbox.

Am I missing something obvious here?