Glossary playback stops too soon

Hello. I have an Articulate presentation that includes a slide with a glossary page. There's also a narration. The narration is only 25 seconds long, but the slide playback has over 2 minutes. However, the playback stops after the narration is finished. The "pause" button only changes to a "play" button if the user clicks on the last item in the glossary. We already have the narration set, and it says to click "play" to continue. We don't want to go back to the narrator just to have her say "click next slide to continue," and the user shouldn't have to click on the last item to see a play button. We have it set so the user can move on at any time. How do we get the playback to go until the "play" button appears? Is there a way to shorten the playback time to 25 seconds on this slide? (Shortening the time in the audio editor didn't do it.)