Gwenview doesnt reproduce mp4

I recently reinstalled Neon on a new SSD. The installation went fine. Now when I am going through my gallery and it reaches a video only the audio plays and the the screen is black. I did a few tests and the problem happens with mp4, mov, mkv, avi, wmv, webm and even tested with an old flv.

In my previous installation of of Neon I didnt have this problem. I am most likely an idiot and I am missing something obvious. I have VLC installed and that one can open all of those files just fine. What could I be missing?