スライド4つのうち3つは正常に動くが1つだけ動かない

Question

swiperを使用し、別タブで切り替え使用したところ、
１つめのタブで２つのスライダーは正常に動くが、
２つめのタブで一つだけ正常に動き、もう一つが、動かなくなってしまいます。

<link href="https://cdnjs.cloudflare.com/ajax/libs/Swiper/4.0.5/css/swiper.min.css" rel="stylesheet">
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Swiper/4.0.5/js/swiper.min.js"></script>
<script>
$(function() {
	
		$('.js--tab_blocks .tab_block:not(.on)').hide();//初期設定
		var tab_btn = $('.js--tab_btns li');
		tab_btn.click(function(){
			var btn_id = $(this).attr("data-number");

			var index = tab_btn.index(this);
			if($(this).hasClass('on')){
			}else{
				$(this).siblings('li').removeClass('on');
				$(this).addClass('on');

				$(this).parents('.js--tab_btns').siblings('.js--tab_blocks').children('.tab_block').removeClass('on').hide();
				$(this).parents('.js--tab_btns').siblings('.js--tab_blocks').children(".tab_block0"+btn_id).addClass('on').fadeIn();
		
				if($(this).parents('ul').attr("data-target")==("sec")){
					secSliderInit(index); 
					secSliderInit(2); 
					console.log("sec");
				}
			}
		});
			var sliders = document.getElementsByClassName('js---slider');
		var sliders_next = document.getElementsByClassName('button_next');
		var sliders_prev = document.getElementsByClassName('button_prev');
		var init_sliders = [];
		// スライダー作成
		function secSliderInit(index) {
			if (init_sliders[index] !== undefined || !sliders.length) return false;// 作成済みなら処理をスキップ
			if (sliders[index].getElementsByClassName('slide').length === 0) {
				init_sliders[index] = null;
				return false;
			}
			var slider = new Swiper(sliders[index], {
				'loop': true,
				'slidesPerView':'1',
				'centeredSlides':true,
				navigation: {
					nextEl: sliders_next[index],
					prevEl: sliders_prev[index],
				},
				pagination: {
					el: '.pagination',
				},
				'paginationClickable':true,
			});
			init_sliders[index] = slider;// 作成したスライダーを連動するキーに格納
		}
		secSliderInit(0);
		secSliderInit(1);


});
</script>

 <section class="sec bg_gray">
    <div class="inner_box cmn_width">
       <ul class="js--tab_btns tab_btns flex" data-target="sec">
        <li class="on" data-number="1">テスト１</li>
        <li class="" data-number="2">テスト２</li>
      </ul>
      <div class="js--tab_blocks tab_blocks">
        <div class="tab_block tab_block01 num1 on" data-tab="num1">
            <div class="pr">
            <div class="swiper-container js---slider mb10">
              <div class="swiper-wrapper">
                <div class="swiper-slide slide">
                  <div class="item">
                    <div class="label tac"></div>
                    <img src="img/photo1.jpg" alt=""> </div>
                </div>
                <div class="swiper-slide slide">
                  <div class="item">
                    <div class="label tac"></div>
                    <img src="img/photo2.jpg" alt=""> </div>
                </div>
                <div class="swiper-slide slide">
                  <div class="item">
                    <div class="label tac"></div>
                    <img src="img/photo3.jpg" alt=""> </div>
                </div>
              </div>
              <div class="slider_pagination pagination"></div>
            </div>
            <!-- swiper-container -->
            <div class="slider_next button_next"></div>
            <div class="slider_prev button_prev"></div>
          </div>
          <!-- pr -->
          
          <div class="sub_box">
             <div class="body_box">
               <div class="pr">
                <div class="swiper-container js---slider">
                  <div class="swiper-wrapper">
                    <div class="swiper-slide slide"><img src="img/photo4.jpg" alt=""></div>
                    <div class="swiper-slide slide"><img src="img/photo5.jpg" alt=""></div>
                    <div class="swiper-slide slide"><img src="img/photo6.jpg" alt=""></div>
                  </div>
                  <div class="slider_pagination pagination"></div>
                </div>
                <!-- swiper-container -->
                <div class="slider_next button_next"></div>
                <div class="slider_prev button_prev"></div>
              </div>
              <!-- pr --> 
            </div>
          </div>
        </div>
        <div class="tab_block tab_block02 num2" data-tab="num2">
            <div class="pr">
            <div class="swiper-container js---slider mb10">
              <div class="swiper-wrapper">
                <div class="swiper-slide slide">
                  <div class="item">
                    <div class="label tac"></div>
                    <img src="img/photo1.jpg" alt=""> </div>
                </div>
                <div class="swiper-slide slide">
                  <div class="item">
                    <div class="label tac"></div>
                    <img src="img/photo2.jpg" alt=""> </div>
                </div>
                <div class="swiper-slide slide">
                  <div class="item">
                    <div class="label tac"></div>
                    <img src="img/photo3.jpg" alt=""> </div>
                </div>
              </div>
              <div class="slider_pagination pagination"></div>
            </div>
            <!-- swiper-container -->
            <div class="slider_next button_next"></div>
            <div class="slider_prev button_prev"></div>
          </div>
          <!-- pr -->
          
          <div class="sub_box">
             <div class="body_box">
                <div class="pr">
                <div class="swiper-container js---slider">
                  <div class="swiper-wrapper">
                    <div class="swiper-slide slide"><img src="img/photo4.jpg" alt=""></div>
                    <div class="swiper-slide slide"><img src="img/photo5.jpg" alt=""></div>
                    <div class="swiper-slide slide"><img src="img/photo6.jpg" alt=""></div>
                  </div>
                  <div class="slider_pagination pagination"></div>
                </div>
                <!-- swiper-container -->
                <div class="slider_next button_next"></div>
                <div class="slider_prev button_prev"></div>
              </div>
              <!-- pr --> 
            </div>
          </div>
        </div>
        
      </div>
    </div>
  </section>
 

sec{
	padding-bottom: 7.2vw;
}
.tab_btns {
  padding: 0 2.4vw;
}
.tab_btns li {
  border-radius: 5px 5px 0 0;
  color: #0F3066;
  background-color: #FFF;
  text-align: center;
  font-size: 1.5rem;
  line-height: 3.4;
  height: 12vw;
  width: calc(100% - 4.8vw / 3);
  position: relative;
}
.slider_pagination{
	margin-top: 0.6vw;
}
.tab_btns li:nth-child(2):not(.on)::before{
	content:'';
	display:block;
	position: absolute;
	right: 0;
	top:50%;
	transform:translateY(-45%);
	height:6vw;
	border-right: 1px solid #CCC;
}
.tab_btns li:nth-child(2):not(.on)::after{
	content:'';
	display:block;
	position: absolute;
	left: 0;
	top:50%;
	transform:translateY(-45%);
	height:6vw;
	border-left: 1px solid #CCC;
}
.tab_btns li.on {
	background-color:#14428D;
	color:#FFF;
}
.tab_blocks {
  background-color: #fff;
  line-height: 1.6;
  position: relative;
  z-index: 10;
}
.tab_blocks .tab_block {
  padding: 5.4vw 4.8vw 8.4vw;
}
.tab_blocks .tab_block .label{
	font-size: 1.5rem;
}
.tab_blocks .tab_block .sub_box {
  border: 2px solid #FDE4E1;
}
.tab_blocks .tab_block .sub_box .slider_next,
.tab_blocks .tab_block .sub_box .slider_prev{
	top: 45%;
}
.tab_blocks .tab_block .sub_box .head_box {
  background-color: #FDE4E1;
  color: #2a2a2a;
  font-size: 1.7rem;
  padding: 3vw 0;
  font-weight: 600;
}
.tab_blocks .tab_block .sub_box .body_box {
  padding: 4.8vw;
}
.tab_blocks .tab_block.num1 {
  display: block;
}

.item {
	width:100%;
}

/*====================================
Swiper
====================================*/
.swiper-container{
}
.slider_pagination {
	text-align: right;
	margin-top: 3.6vw;
}
.swiper-pagination-bullet {
	background-color: #FFF;
	border: #EF6952 1px solid;
	opacity: 1;
	width: 1.5vw;
	height: 1.5vw;
	text-align: right;
}
.swiper-pagination-bullet:not(:last-of-type) {
	margin-right: 1.8vw;
}
.swiper-pagination-bullet-active {
	background-color: #EF6952;
	border: #EF6952 1px solid;
}
.slider_next,
.slider_prev{
	position:absolute;
	width: 3.5vw;
	height:5.9vw;
	top:50%;
	transform:translateY(-50%);
	z-index: 100;
}

Answer 1

関係なかったらごめんなさい。
linkタグはheadタグ内
scriptタグは全てbody閉じタグの直前に入れてください。
たまに、そうしないと動作しないスクリプトがあります。

Comments

[MM1908000]

ご確認ありがとうございます。
そのようにしておりますが、４つ目のみ動きませんでした。