Major Storyline Audio Playback Issues

Hi,

We are experiencing very similar intermittent audio issues in Storyline 360 courses.

In our case, the issue only affects some users and appears to be stochastic. Sometimes there is no audio on a slide/layer, and in a few cases the wrong audio file appears to play. We have seen this in our LMS, in Review 360, and in SCORM Cloud using cmi5 packages. For one specific user, the issue occurred in our LMS but not in Review 360 for the same course.

When the issue occurs, we can see console errors indicating that a specific audio file cannot be loaded, for example:

GET .../story_content/[audio-file].mp3 net::ERR_CACHE_OPERATION_NOT_SUPPORTED

followed by:

AudioClipBase::constructor - could not load ".../story_content/[audio-file].mp3"

The console errors make us think this may be related to published media handling, caching, or how Storyline resolves audio files in the published output.

We have also opened a support case with Articulate, but wanted to add our findings here since the symptoms seem very similar.