I have applied for a new hook to be added to take care of the issue in 4.0.3 so hopefully this will only be "broken" for this iteration. If you want to fix, you will need to apply the following file edit:
Note: THIS IS FOR VERSION 4.0.3.
Edit includes/functions_video.php and change:
PHP Code:
function parse_video_bbcode($pagetext)
{
global $vbulletin;
to
PHP Code:
function parse_video_bbcode($pagetext)
{
global $vbulletin;
require_once(DIR . '/includes/ame_prep.php');
$providers = ame_data_preparse($pagetext);