Description of issue: I have tried to add a card for the home page of my Tumblr blog that has a custom domain and custom theme. The only way I know I can do this is by going to the customization tab > edit HTML and then I add a card with a unique image. I add cards to the rest of my blog posts and those work flawlessly. However, when I tweet the link to my home page, the image, title, and description that will show up will pertain to a random blog post.
This is the exact same image, title and description I’m using for the card for this link: http://plnkwifi.com/post/168634573875/us-the-duo-westfield-utc-december-16-2017
URL affected (must be public): http://plnkwifi.com/
Troubleshooting steps attempted [note that we will not prioritise posts unless there is evidence of following the troubleshooting guides]: I’ve tried playing around with things and nothing seems to change. Does anyone know what might be going on and how to fix it? This is super annoying!