Facebook crawler for videos page problem (opengraph issue?)

Hi,

We've noticed that when we share a video to facebook we see a "Download this file" message. I believe this may have to do with the ordering of the opengraph meta tags for the og:video:type and og:video:url, similar to what is discussed here:

http://stackoverflow.com/questions/36637961/shared-mp4-video-shows-download-file-instead-of-playing-it-on-timeline

I see that the opengraph tags are inserted in the file:

/administrator/components/com_easysocial/includes/opengraph/opengraph.php

However, changes to this file don't seem to affect the rendered output for the video page. Any advice?

Thanks!