I'm having a problem on the slider, and the problem as stated below:

The slider have 6 slides, and bullets are shown. 

If I click on the last bullet when the slider is showing the 1st/2nd slides. the slides will changed to the sixth slide, but then it will changed back to 3rd slides after the time ends. Instead of the 1st according to looping.

But the problem is having less chances to happen when slider is less than 6 slides. (Still happen sometimes, when I click too fast / the page stayed idle for a period of time)

Is there any limitation for the module that I don't know? Or this is a script problem?

I'm using version 7.x-2.19 , and jQuery version 1.7