Category Slider In Featured Section Options Not Working Properly

I have several categories setup but when i change (Sexy) category which is currently selected it stops to work properly. This happened when i changed to another category (FrontSlider)
In fact this second category (FrontSlider) only plays a single image despite a number of Post are set to FrontSlider category and with number of slides set to 7.

In fact even the initial slider no more shows the original number of slides despite me even adding 3 more. it is still showing me three

I tried to purge the cache
opened using another browser still nothing