Slider display automatic off?

Hy!

Thank you for that very good theme. But i have one problem.

My steps:
– Install 3.9.2 WP
– Install theme 2.1.1
– Add the theme options
– Upload pictures in theme option/slider zone
– Create the index page, add the shortcode ([fruitful_slider] – add that in html view) and add “Display Slider” Full width option, on page editor zone and save.

The problem: When i’m click the save button, the slider display option all time change the setting to “Disable slider”.
And i’m don’t know why?

I’m try that:
– Disable all plugin (only Fruitfull shortcodes)
– Chose boxed slider setting
– Chose another slider type (Flex and Nivo)
– Add the slider, another page (which not the front page)

All time, i’m just see the shortcode.

What is the problem?

Thank you,
Thomas