how did you embedded them?
I used the following HTML5 code:
var vid = sym.$("main_movie4")
vid.html('<video width="720" height="480" src="videos/screen1.mp4" type="video/mp4" autoplay = "autoplay" > </video>')
that looks ok to me but what do the others that arent working? give some more information or share your project
Here is a link to the problem files
please note that the videos (planet0 - planet1) are working fine, but the videos (screen1 - screen2) are not working.
you have to put the code for the div in stage actions compestioncomplete
you also could use edgehero for adding videos