Engage Accordion Interaction Issue

I just started experimenting with the Studio 13 interactions. I inserted an accordion interaction with an introduction, and three panels. When I preview the interaction or view it after publishing, the first panel divider doesn't work until you click on one of the other dividers, then the first one will work. If I select linear navigation for the interaction, clicking the Next button while on the introduction section takes the learner to the second section instead of the first section.

I just noticed the same issue with the Checklist, Folder, Guided Image, Media Panel, Media Tour, Process,  and Tabbed Image interactions. The Conversation interaction does not display the second item on the list until learners click subsequent items.

I tried with and without images and had the same issue. Is there something I'm not doing correctly?

I'm using Windows 7 on my computer with a 64-bit operating system.

Thanks in advance for your help.