Teachers Slider in homepage issue

Hi,

First of all, I really liked your theme and appreciate your design. Its really a good and worthy one. But Now I am facing a minor issue in the theme. In the homepage, the Teachers slider seems to be messed up now. Though in the settings of the slider, we have set it to display a particular group of Teachers, it seems to show all the teachers in the slider. Initially this was working well but now I do not know what happened. Kindly help me out to sort this issue. There are 2 sliders in the homepage which is set to 2 different groups. But its displaying all Teachers in both the sliders. I checked the seetings too.

The website Link is : http://chellammal.edu.in/

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