Gif wont play in masonry

I’ve seen a few threads regarding this problem, yet i’m still having an issue with this.

I’ve built a masonry for our website, where i am trying to implement Gif’s that autoplay and loop constantly. Yet the masonry doesn’t seem to be playing the gif i add, only when clicked and opened in lightbox it starts playing (and even there is doesn’t loop but just plays once, even after switching to another image and back it still won’t play if it has already played once).

I want the thumbnail shown in the masonry grid on the page to be playing a gif. From what i’ve read this is possible but i don’t seem to understand how to do so.

Below i’ve posted the link to the page in question, where you can see (when scrolling down a bit) the bottom right image of the masonry is a gif that just shows a still image.

Hope someone can help me out here seeing i’ve been struggling with it for a while.