Hi Basilis,
Have followed those instructions, and no change.
It is really weird.
On this page of the website (http://www.gravitycircuscentre.com/professional-course/) there are 2 image sliders at the bottom of the page
1) Top – WP gallery slider created in the Content Box of Enfold
2) Bottom (you can’t see the images but you can see the buttons if you hover over the blank space) is an Enfold Image Slider
None of the Image sliders work – the other media boxes do!!
Any further ideas!
best wishes
Tim