HTTP Error after uploading files

When uploading an MP4 file, after the file is finished uploading, the page will halfrefresh and say HTTP Error.
The file was fully uploaded. But would not let me add any info.
The file IS NOT in the library but it is on the server.

Yes, I updated php.ini myself to have a 7GB upload limit
I adjusted wp-config.php with the code:

define('WP_MEMORY_LIMIT', '64M')

I have added all of the following to my .htaccess file

AddType x-mapp-php5 .php

<IfModule mod_security.c>
SecFilterEngine Off
SecFilterScanPOST Off
</IfModule>

# Exclude the file upload and WP CRON scripts from authentication
<FilesMatch "(async-upload\.php|wp-cron\.php|xmlrpc\.php)$">
Satisfy Any
Order allow,deny
Allow from all
Deny from none
</FilesMatch>

I need to be able to upload large video files through the WP interface.