Hi @Svilen_Georgiev,
It looks like this is due to the pause on hover feature and as you’ve set the slider to 100VH, it’s difficult to not hover on it. You can test this by scrolling down and make sure your cursor isn’t sitting on top of the slider and the slider should resume auto-play.
In terms of disabling this auto-pause feature, I’d recommend checking these articles for solutions: Disable Slider Pause on Hover - #8 by dwehrmann
Slider AutoPlay Pauses on Hover - #10 by Brett