Twitter/vine embeds failing

I am using a modified version of quark theme on a website. The twitter/vine embeds are not working properly, even if I put them in a post by themselves. Youtube and soundcloud work fine. I did a test post on a different website that doesn’t use a quark theme base, and the twitter and vine embed worked fine. The url is on it’s own line like it’s supposed to be, and there’s no white space on either side of the url. When I look at the source, it looks like it’s starting to embed but it’s being broken.

https://www.frameablefaces.com/blog/

In the middle of the first post where it says “1st part of this sweet family session as planned ” is supposed to be a tweet with a vine video embedded.

I tried it on two other sites using the quark theme as a base, one it worked on, one it did not. The one that it worked on is a newer install, does anyone know if quark would have updated to fix this?

The only major modifications I can think of that I made to the function file were to add a new social media icon for vine, and adding additional sidebar areas.
??
Has anyone else had a problem?