Conflict with Omny Embed and Publicize?

[Amandomino]

Hello. Love the plugin! Thank you so much for it!

I'm wondering if there could be any conflict between the Omny Embed code in a post and Publicize not working correctly.

I have one user who uses your shortcode in his posts and when Publicize posts his posts to Twitter it does not use the Twitter card format like it usually does. For some reason Publicize is choosing the 2nd image in the post along with the title and a link rather than using the featured image in and Twitter card, like it does for all other posts.

The only thing this user does differently is use the Omny Embed shortcode, so I'm just hoping to rule out this plugin being the issue.

Thank you for your time. Cross-posted to Wordpress.org.