Slider not using the nav settings I gave it

Hi,

I am trying out Super Hero slider (it is great that it replaces featured images) and I witness a strange behaviour. It is not using the navigation settings I entered and saved for each sliders. I have multiple sliders on one page. They all use the same default settings no matter how many times I save the settings.

Navigation settings I saved :
– Navigation position : centered (ok)
– Navigation style : Dark on Light (ok)
– Navigation buttons : chevron (ok)
– Buttons style : no background (it is white background)
– Pagination : hide (ok)

When I change any settings, it is working. But no background is the only one that is not working. It is always showing the square background instead of none.

At first I was seeing many weird behaviour (last week when I first set everything) but now I guess it was my browser’s cache not clearing perfectly, because this is the only problem today.

The other issue still appearing is that the pagination is not appearing, it is displaying a black bar, even in back office preview.

Any clue to help would be much appreciated!
Thanks a lot,
Kind regards
Eva