Weazly

I have the same problem.

It shows the first two Slideshows with picture and arrow, but the third one shows only the arrows.

HTML:

<p>Slideshow 1:</p>
	<div class="slideshow-container">
    <div class="mySlides1">	<img src="../03-bilder/halle/IMG_1.jpg" class="slide"> </div>
    <div class="mySlides1">	<img src="../03-bilder/halle/IMG_2.jpg" class="slide"> </div>
    <div class="mySlides1">	<img src="../03-bilder/halle/IMG_3.jpg" class="slide"> </div>
	
	<a class="prev" onclick="plusSlides(-1, 0)">❮</a>
	<a class="next" onclick="plusSlides(1, 0)">❯</a>
</div>

<p>Slideshow 2:</p>
<div class="slideshow-container">
  	<div class="mySlides2">	<img src="../03-bilder/Turnier1/IMG_1.jpg" class="slide"> </div>
  	<div class="mySlides2">	<img src="../03-bilder/Turnier1/IMG_2.jpg" class="slide"> </div>
  	<div class="mySlides2">	<img src="../03-bilder/Turnier1/IMG_3.jpg" class="slide"> </div>
  	<div class="mySlides2">	<img src="../03-bilder/Turnier1/IMG_4.jpg" class="slide"> </div>

	<a class="prev" onclick="plusSlides(-1, 1)">❮</a>
	<a class="next" onclick="plusSlides(1, 1)">❯</a>
</div>

<p>Slideshow 3:</p>
<div class="slideshow-container">
       <div class="mySlides3"> <img src="../03-bilder/end-of-summer/IMG_1.jpg" class="slide"> </div>
       <div class="mySlides3"> <img src="../03-bilder/end-of-summer/IMG_2.jpg" class="slide"> </div>
       <div class="mySlides3"> <img src="../03-bilder/end-of-summer/IMG_3.jpg" class="slide"> </div>
       <div class="mySlides3"> <img src="../03-bilder/end-of-summer/IMG_4.jpg" class="slide"> </div>

       <a class="prev" onclick="plusSlides(-1, 2)">❮</a>
       <a class="next" onclick="plusSlides(1, 2)">❯</a>
</div>

CSS:

.mySlides1, .mySlides2, .mySlides3 {display: none}
img {vertical-align: middle;}

/* Slideshow container */
.slideshow-container {
  max-width: 1000px;
  position: relative;
  margin: auto;
}

/* Next & previous buttons */
.prev, .next {
  cursor: pointer;
  position: relative;
  top: 50%;
  width: auto;
  padding-right: 8vw;
  padding-left: 8vw;
  color: white;
  font-weight: bold;
  font-size: 8vw;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

/* On hover, add a grey background color */
.prev:hover, .next:hover {
  background-color: #f1f1f1;
  color: black;
}

Javascript:

var slideIndex = [1,2];
var slideId = ["mySlides1", "mySlides2", "mySlides3"]
showSlides(1, 0);
showSlides(1, 1);
showSlides(1, 2);

function plusSlides(n, no) {
  showSlides(slideIndex[no] += n, no);
}

function showSlides(n, no) {
  var i;
  var x = document.getElementsByClassName(slideId[no]);
  if (n > x.length) {slideIndex[no] = 2}    
  if (n < 2) {slideIndex[no] = x.length}
  for (i = 0; i < x.length; i++) {
     x[i].style.display = "none";  
  }
  x[slideIndex[no]-2].style.display = "block";  
}