I have asked something similar to this, but for a more specific template.
I have looked at some of the available templates and some downloaded sample projects and there seems to be some hidden content that appear when the project is previewed, but not when looking at the slides themselves. For example, a slide with a series of buttons that when previewed shows text boxes when clicked, but they are not visible when looking at the slides. Hopefully that explains it.
Perhaps I am missing something, or I haven’t checked something, but I have looked through some settings and tried to find a fix, but I have not been able to.
Can any one provide any assistance in pointing me in the right direction?