MediaElement.js and FlexSlider on iPad

Dear support,

I have on my homepage
1) On top a FLexSlider
2) Above a MediaElement video with preload = auto autoplay = false

On iPad my FlexSlider is not loaded and I can show just the mediaelement video …

Same error with VideoJS 4.0.0.

Is it possible a jquery conflict?

Thanks

https://www.ads-software.com/extend/plugins/media-element-html5-video-and-audio-player/