Audio not working for HTML5 output in Chrome using Storyline 360

Hi there, 

I don't have Storyline 360, I'm using Storyline 2 and as of two days ago, this is the exact same thing happening to me when I publish. The story I successfully published before this started happening, has the issue when I try and publish it now as a test. It has been fixing itself randomly on some slides and not on others. I've tried re-installing SL2, importing into a new story, importing new audio, testing working slide audio on non-working slide audio and no success. 

I just wanted to add to here as it doesn't seem specific to just convert from SL3 to SL360. I've submitted a ticket, waiting for a response.

Thanks! 

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UPDATE: 

Thought I would share my progress here just in case it helps someone else. I found what the problem was and managed to fix for all slides except for one that works locally but uploaded to my server, doesn't work. For me, the problem was stock videos beginning at the very start of the timeline. I shifted them to start .05s in and that let the separate audio layer play fine. I also noticed it was throwing a console error: 

Uncaught (in promise) DOMException: The play() request was interrupted by a call to pause().

This disappeared after I done the above. I'd be curious to hear if anyone has fixed it and how. This has taken me over 2 days of wasted time trying to figure out what was going on. Hopefully, my solution may help someone else. 

Thanks!