Thanks,
I solved it by using Rev-slider instead of the theme’s default.

Please note that there was an error when I used vimeo video inside the revslider in:

wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/slideshow/slideshow-video.js?ver=4.9.8

in line 755 “var value = data.value” data were NULL.
I added:
if ( data == null ) return false;

To solve the problem.