Membership Pro Media Add on Issue

Hello - I am opening a new ticket on this because no-one is responding to my last ticket and I need to resolve this ASAP. I transferred my site from Siteground hosting to WPEngine and am having an issue with media files. I use Membership 2 Pro and the Media File Manager add on. On my old site all of the pictures were visible while using this add-on...on the new hosting account the pictures are only visible if I turn off the Media File Manager add on. Any idea why this would be?