Advance slide after audio plays

Can you check the exact version number. Be sure to use the most recent version which is 9.0.2.437.

Easiest way to achieve this is to use slide audio, which will appear as an audio timeline. Create a Next button that starts at the end of the audio timeline. If you use a default playbar, it is nor possible to keep the Next button disabled unitl the audio ends.

Another approach needs an advanced or shared action. You hide the Next button in output (can be from the start of the slide). Create an advanced action with these commands:

   Play Audio ....

   Delay Next Actions by x secs     x being the duration of the audio clip in seconds

   Show Next Button 

Trigger that action with the On Enter Slide event.

Beware: if you allow the user to revisit the slide, do you want them again to have to wait until the audio ends?