In older versions of Adobe Captivate, slides automatically advanced from one to the next. If you wanted a slide to pause for learner engagement, you had to add an interactive component, such as a button or click box. This version of Captivate is as different from Captivate Classic as night is from day.
To make a Captivate 12 slide auto-advance, add a bookmark to the Timeline and set its action to go to the next slide.
This short video demonstrates the process.
If you need Adobe Captivate training, mentoring, or development support, we can help.