Quiz in posts not rendered on the main page

Hi,
I’m using this great plugin with TruePixel template.
I have the posts on the main page. In each post I have the playbuzz code to a quiz but the quiz is not rendered unless I’m getting inside the post.
So if the post holds the quiz as the content, like this:
[playbuzz-game game=”http://www.playbuzz.com/jessicak14/what-classic-playground-game-are-you”%5D
, I see only “read more…” without the quiz.

Thanks for your help.

https://wordpress.org/plugins/playbuzz/