title: Tinymce 4 toolbar icons not appear
body: <p>I have an asp.net project and I am using tinymce 4. It was working perfectly but totay my editors buttons suddenly disappeared. I searched for the solution from the internet but I could not find any solution.</p>
  
  <p>the icons like on the picture. what should I do.
  Regards...</p>
  
  <p><img src="https://i.stack.imgur.com/olfYn.png" alt="enter image description here"> </p>
  
  <pre><code>&lt;script src="js/tinymce/tinymce.min.js"&gt;&lt;/script&gt;
  &lt;script&gt;
      tinyMCE.init({
          forced_root_block: "",//remove p tags
          mode: "textareas",
          selector: ".tinymce",
          theme: "modern",
          height: 450,
          resize: false,
          statusbar: false,
          plugins: ["advlist autolink lists link image charmap print preview anchor",
          "searchreplace visualblocks code fullscreen",
          "insertdatetime media table contextmenu paste"],
          toolbar1: "styleselect | bold italic underline | pagebreak code preview | undo redo | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent ",
      });
  &lt;/script&gt;
  
  
  
  
   &lt;asp:TextBox ID="txt_reading" runat="server" CssClass="tinymce"&gt;&lt;/asp:TextBox&gt;
  </code></pre>