NextGEN Slider Images

I’m still pretty new at this so forgive me! The slider on my homepage hasn’t been working for months. I’ve tried tweeking with the post settings and checking the images, but nothing. Also updated all plugins and wordpress. It only shows one picture over and over, add a new post and slider image – then THAT picture over and over. I did some reading a rolled back the version of NextGEN Gallery to 1.9.13 and still no change.

http://www.tintedatmospheres.com