Set void "Slider Section Button Text" break Slider

Hi,
In Clean Biz Free we cant set a void “Slider Section Button Text” to avoid showing the buttons (and so the slider is just a slider, without linking to the page). Was great.
But now i buy Clean Biz Pro and set a void “Slider Section Button Text” on it break the slider (autoplay don’t work, arrow aren’t show, pager isn’t show).
Can you fix it please ?
Thanks !