Why are slides not automatically advancing?

There are two settings that can cause a slide not to progress to the next slide automatically.

User must click 'play' to advance

To remove this setting so that the slides advance automatically:

1. Navigate to Edit mode of the presentation
2. Select the Options tab
3. Un-check "User must click 'play' to advance" at the bottom of the page
4. Click Save/Apply

If this is checked the slide will pause once the slide's audio is complete. Un-check this option to have slides automatically advance.

Pause after audio completes

If this is enabled, the slide will pause once the audio on the slide is complete. To remove this setting so that the slides advance automatically:

(This option is on by default when adding Document slides)

1. Navigate to Edit mode of the presentation
2. Select Manage Slides
3. Select Edit for the slide you would like to edit
4. Un-check "Pause after audio completes" near the bottom of the page
5. Click Save/Apply

This setting can only be adjusted on a per-slide basis.