Select2 dropdown won't close at all

Question

I have a select element with a few option elements, but the dropdown menu will not close after I open it.

I don't know why it doesn't work on my project but it works perfectly fine on a new project.

 $(document).ready(function() { $('#user-selection').select2(); }); 

 <select id="user-selection" name="userId" style="width: 100%" required> <option>1</option> <option>2</option> <option>3</option> </select> 

Am I missing something out?

Update: Changed to correct version of Select2 which made the problem go away

Answer 1

This error at last version of select2, you can use the file I attached I edit focus event at select2.js

this.on("focus", function () {
    a.$container.addClass("select2-container--focus"), 
    a.$container.hasClass("select2-container--disabled") || a.isOpen() && (a.options.get("multiple") ? window.setTimeout(function () {
        a.open()
    }, a.options.get("ajax") ? 300 : 100) : a.open())
}),

from a.isOpen() || to a.isOpen() &&

 <link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.6/css/select2.min.css" rel="stylesheet"/> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://dits.cloud/js/select2.js"></script> <select id="user-selection" name="user" style="width: 100%" required> <option>1</option> <option>2</option> <option>3</option> </select> <script> $(document).ready(function () { $('#user-selection').select2(); }); </script> 

Edited select2.js