No longer works properly

Now the videos don’t seem to autoplay, and on the offchance that it does, none only one plays. But i usually have to click to get them to play. On mobile, they don’t play. They have no audio and are mutes, and autoplay is set to on.

Also it has a shadow overlay for the controls when you hover, even if you have the controls hidden (I simply want short video thumbnails, so they need to all play at same time, and have no control overlay shadow. And actually play, as right now its just showing a still frame 99% of the time.

The page I need help with: [log in to see the link]