Page partially disappears

Just added SA to restrict access to page - when user not log on. As expected when page loads, diverted to LogIn page if user is not login - however when user logs in and returns to page the main content for the page does not appear.
This page did appear corrrectly prior to adding behavior to page

Issue related to CMS code on page - which we are further investigating - in the meantime commenting out the CMS code has resolved issue

Is the CMS code from PowerCMS?
It sounds like error reporting is turned off.

Add the following code at line 1 to turn error reporting on:

<?php

error_reporting(E_ALL);

ini_set('display_errors','on');

?>

if the CMS Code is from power cms:
in the WA_CMS/WA_CMS.php file, comment out the securioty assist include line:
//require_once( "../WA_SecurityAssist/Helper_PHP.php" );

the security assist helpers are used for the live edit functionality, this will create a conflict on pages that have security assist applied.

If you want to maintain live edit on the other pages of you site you can create a copy of the WA_CMS.php file and comment the security assist line there, but leave it intact in the the other version. then in the developer notes for the security assist pages, attach the WA_CMSCopy.php page instead of the one that has the security assist include intact.