Separate Video and Audio file don't sync after publishing
I'm using Storyline 2 and in one of my course, I used separate video (mp4) files and added later as mp3. In the timeline, my mp4 and mp3 files are separate.
While in preview the slides work fine, after publishing the same slides with separate video & audio, don't play as expected. In fact, the video plays while the audio doesn't. If I move the seekbar back and forth, the slides work fine.
Any idea why this happens, and how can I make sure that my learners don't face the same issue.