Twitter Cards

I have Social Warfare and Yoast SEO plugins installed. When I create a post, I add social media content (title and description) and an image (at 1200 by 628 px) for both plugins to display the post on Facebook and Twitter. However, when I share the post URL on Twitter or go to add it to Twitter via Social Warfare icon, the Twitter card does not display on Twitter. I am wondering if having both Social Warfare and Yoast installed could be causing a conflict. Have you run into this before? Basically, my problem is that even though I am adding the correct information the Twitter Cards are not displaying.