and as usual when I ask for help I figure it out while waiting. 🙂
For those who might come across this as well here is my fix hope it helps you. It came down to ordering and not having the engine turned on twice.
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
RewriteRule ^wp-content/uploads/(.*)$ http://MyCloudFrontName.cloudfront.net/$1 $
</IfModule>
# END WordPress