MP4 won't autoplay correctly in Keynote
When in Play in my Keynote presentation ( v14.2 in Sequoia), the mp4 on a slide won't autoplay. In fact, when I click on it Keynote kicks me out of Play mode, I get the white circle and right-facing triangle in the middle of the screen, then when I click that button the video will play. Strangely, the handles on the video's borders appear as well.
I tried converting the file to .GIF and .MOV, and the result is the same. I enabled/disabled Start movie on click and tried changing Start Movie in Build In to None. That didn't help, either.
Mac mini