I have a video slider (above masthead) that is working fine on laptop/desktop, but on mobile it is just static. I understand that you can make video play optional (by click) on mobile, but this does not seem to be activated on my slider. Nothing happens on click/swipe/or any other action. I’ve had a good look on the slider settings but can’t find anything obvious.
Video has no autoplay on mobile. It requires user interaction to play it. The problem with your setup is that the video is set as background where the user can’t interact. Instead of adding your video as background, add it as video layer and set it to fullscreen.