Why swiper is not displayed as it should?

Question

JavaScript

There is a slider on swiper.js and for some reason it does not display correctly for me

// place-tariff-slider

document.addEventListener("DOMContentLoaded", () => {
    const placeTariffSlider = document.querySelector(".place-tariff-slider");

    if (placeTariffSlider) {
        let mySwiper;

        const initializeSlider = () => {


            mySwiper = new Swiper(placeTariffSlider, {
                slidesPerView: 1,
                modules: [Grid],
                grid: {
                    rows: 2,
                },
                pagination: {
                    el: ".swiper-pagination",
                    clickable: true,
                },
                breakpoints: {
                    769: {
                        slidesPerView: 2,
                    },

                    grid: {
                        rows: 2,
                    },
                }
            });

        };

        if (window.innerWidth <= 768) {
            initializeSlider();
            placeTariffSlider.dataset.mobile = "true";
        }

        const mobileSlider = () => {
            if (window.innerWidth <= 1024 && placeTariffSlider.dataset.mobile == "false") {
                initializeSlider();
                placeTariffSlider.dataset.mobile = "true";
            }

            if (window.innerWidth > 1024) {
                placeTariffSlider.dataset.mobile = "false";
                if (placeTariffSlider.classList.contains("swiper-initialized")) {
                    mySwiper.destroy();
                }
            }
        };
        mobileSlider();

        window.addEventListener("resize", () => {
            mobileSlider();
        });
    }
});

This is how it should be:

<section class="place-tariff">
    <div class="place-tariff__container swiper place-tariff-slider container__1200px" data-mobile="false">
        <img class="worker-img" width="265" height="912" src="./assets/images/place-worker.png" data-src="./assets/images/place-worker.png" srcset="./assets/images/place-worker.png" alt="place-worker">
        <div class="place-tariff__table swiper-wrapper">
            <h1>Прочистка канализации и устранение засоров <br> по объектам</h1>

            <!-- ITEM -->
            <div class="place-tariff__table-item swiper-slide br-less bb-less round">
                <svg width="57" height="65" viewBox="0 0 57 65" fill="white" xmlns="http://www.w3.org/2000/svg">
                </svg>
                <h3>квартира или таунхаус</h3>
                <p>Цена от <span>4000 ₽</span></p>
                <div class="btn-wrapper">
                    <button data-graph-animation="fadeInUp" data-graph-path="call-specialist" data-graph-speed="500">Заказать Услугу</button>
                </div>
            </div>

            <!-- ITEM -->
            <div class="place-tariff__table-item swiper-slide bb-less">
                <svg width='72' height='52' fill="white" viewBox="0 0 54 45">
                </svg>                  
                <h3>квартира или таунхаус</h3>
                <p>Цена от <span>5000 ₽</span></p>
                <div class="btn-wrapper">
                    <button data-graph-animation="fadeInUp" data-graph-path="call-specialist" data-graph-speed="500">Заказать Услугу</button>
                </div>
            </div>

            <!-- ITEM -->
            <div class="place-tariff__table-item swiper-slide br-less bb-less round ">
                <svg width="72" height="74" viewBox="0 0 72 74" fill="white" xmlns="http://www.w3.org/2000/svg">
                </svg>                                                      
                <h3>квартира или таунхаус</h3>
                <p>Цена от <span>5000 ₽</span></p>
                <div class="btn-wrapper">
                    <button data-graph-animation="fadeInUp" data-graph-path="call-specialist" data-graph-speed="500">Заказать Услугу</button>
                </div>
            </div>

            <!-- ITEM -->
            <div class="place-tariff__table-item swiper-slide br-less bb-less">
                <svg width="70" height="67" viewBox="0 0 70 67" fill="white" xmlns="http://www.w3.org/2000/svg">
                </svg>                                    
                <h3>квартира или таунхаус</h3>
                <p>Цена от <span>5000 ₽</span></p>
                <div class="btn-wrapper">
                    <button data-graph-animation="fadeInUp" data-graph-path="call-specialist" data-graph-speed="500">Заказать Услугу</button>
                </div>
            </div>

            <!-- ITEM -->
            <div class="place-tariff__table-item swiper-slide br-less">
                <svg width="77" height="73" viewBox="0 0 77 73" fill="white" xmlns="http://www.w3.org/2000/svg">
                </svg>                    
                <h3>Управляющие Компании, ТСЖ, ЖСК</h3>
                <p>Цена от <span>6000 ₽</span></p>
                <div class="btn-wrapper">
                    <button data-graph-animation="fadeInUp" data-graph-path="call-specialist" data-graph-speed="500">Заказать Услугу</button>
                </div>
            </div>

            <!-- ITEM -->
            <div class="place-tariff__table-item swiper-slide br-less">
                <svg width="74" height="74" viewBox="0 0 74 74" fill="white" xmlns="http://www.w3.org/2000/svg">
                </svg>                    
                <h3>завод <br> и предприятие</h3>
                <p>Цена от <span>6000 ₽</span></p>
                <div class="btn-wrapper">
                    <button data-graph-animation="fadeInUp" data-graph-path="call-specialist" data-graph-speed="500">Заказать Услугу</button>
                </div>
            </div>

            <!-- ITEM -->
            <div class="place-tariff__table-item swiper-slide">         
                <h3>АЗС, автомойка и автосервис</h3>
                <p>Цена от <span>6000 ₽</span></p>
                <div class="btn-wrapper">
                    <button data-graph-animation="fadeInUp" data-graph-path="call-specialist" data-graph-speed="500">Заказать Услугу</button>
                </div>
            </div>
        </div>
        <div class="swiper-pagination g-pagination main-services-slider__pagination"></div> 
    </div>
</section>