Hello again Andrii,
I’m having some different issues with the background slider. Generally I am still confused whether the ‘image slider’ category has any influence on settings in the background settings (or NextGEN) if one has chosen the background slider as the default content of the custom header (custom header is activated) via theme options. Anyhow, I thought you might be able to help: Despite selecting a slideshow pause on hover and a background URL they don’t work on the actual website. Funnily enough, I am getting a feedback for other settings such as transition time and captions though.
Cheers,
Christopher