How to make infinite slider with variableWidth in Slick?

Question

JavaScript

Here is a slider, it is endless, it has 1 slide taking up half (2/4) and several 1/4
But when it reaches the end, this happens:

Why is this happening?

{
        dots: true,
        arrows: true,
        infinite: true,
        swipeToSlide: true,
        speed: 800,
        slidesToShow: 1,
        slidesToScroll: 1,
        variableWidth: true,
        autoplay: false,
        cssEase: 'ease-in-out',
        dotsClass: 'main-dots'
}

Answer 1

And how should it happen? Three slides fit, the fourth didn't fit, everything is logical.