No ‘next’ and ‘prev’ in SW – Videos Slider

Hello!

I’ve added a “SW – Videos Slider” to a page using Elementor and configured a couple of youtube videos, but there is no way to scroll the video in the published page. In your demo at link:

Homepage

in a similar section, two arrows are clearly visible near the upper right corner of the focused video. Those arrows are missing in my page.

Can you help me? Thank you very much.