All of a sudden published 2017 course doesn't play audio on default (first) screen

This is now the way all Captivate courses work by default.  Adobe explains the reasons here:

https://helpx.adobe.com/captivate/kb/captivate-responsive-courses-not-autoplay-browsers.html

However, if courses you created years ago have suddenly just started obeying this behaviour, even though you haven't changed anything in those courses, then the only explanation is that something has changed in your IT environment.

Web browser enforcement of this behaviour (where audio does not play by default until the user interacts with the content) has been patchy.  But my suspicion is that you have just had a browser update that now mandates what should have been happening all along.

I forgot to add - I have 65 courses I've authored over 7 years, including lots of maintenance and updates.

These are in 2 groups - a group of 25 that have the playbar included for screen navigation, and then 40 that have really simpleton navigation: buttons for Back, Pause, Play, and Next.  I inherited this group and this is what I'm working on now that started to not play audio on screen 1.

I've tried using Play audio (audio ID) on Enter for screen 1, but that doesn't seem to work.  I need to brute force the audio on screen 1 somehow.