Welcome to the forum,
It helps if you mention the exact version, smart shapes are available in 6.0.0.199, 6.0.1.240, 6.1.319 and 7.
Try to post a screenshot of the timeline of the slide, using the small still camera icon available in the editor (browser version of the forums). With Elakat I suspect that you have a pausing point, caused by an interactive object, at 1.5sec.
Lilybiri
