When we use the shortcode for the layer slider, for instance [ layerslider id=xxx ], we can see in normal browsers the slider functioning properly.

But. When we use the same slider, with the same shortcode in a widget (on this page in the footer) it functions differently when you see the page on iOS iPad or iPhone.

The slide shows up, disappears instantly, wait 5 secs, next slide shows up, disappears instantly, wait 5 secs, next slide shows up, et cetera.

On Android, Windows etc. on desktop it functions alright.

 

How can this be (iOS related)  problem be resolved?