I have been teaching a class for 5+ years with 12-18 students. We've never had a problem with the sound in our videos we place via the video overlay. Now, suddenly in our app none of the sound is working in the videos. I've got 12 students and none of them can get audio to play in our app. This is happening for video (mp4) and for just audio, mp3s.
I've searched the forums and am wondering if someone can point me in the right direction.