Why my swiper slide from the last slide?

Without setting the initialSlide, my swiper always slide from the last slide. As I set it to 1, it works (Slide from the first slide). Why not Zero.

swiperOption: {
    pagination: '.swiper-pagination',
    nextButton: '.swiper-button-next',
    prevButton: '.swiper-button-prev',
    slidesPerView: 1,
    paginationClickable: true,
    spaceBetween: 30,
    loop: true,
    autoplay: 3000,
    autoplayDisableOnInteraction: false
}

[hgawait]

My solution is： swiperOption: { … initialSlide: 1 }

[simone-sanfratello]

I had same problem, fixed with

swiperOption: {
        ...
        onInit: function (swiper) {
          swiper.slideTo(1)
        }

@surmon-china thanks for this great plugin