Issue with revisiting old challenges

When I go back to previous challenges and repeat them, everything works great until I get the success box, but then it’s not entirely filled out and the button is not clickable to go on. The exercise is already marked complete and I can use the map to go forward, but this has happened several times so it seems like it should be addressed.

I am on a Mac running 10.7.3, using Firefox 47.0

Challenge Target HTML Elements with Selectors Using jQuery has an issue. User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:47.0) Gecko/20100101 Firefox/47.0. Please describe how to reproduce this issue, and include links to screenshots if possible.

My code:

<script>
  $(document).ready(function() {
    $("button").addClass("animated bounce");
  });
</script>

<!-- Only change code above this line. -->

<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <h4>#left-well</h4>
      <div class="well" id="left-well">
        <button class="btn btn-default target" id="target1">#target1</button>
        <button class="btn btn-default target" id="target2">#target2</button>
        <button class="btn btn-default target" id="target3">#target3</button>
      </div>
    </div>
    <div class="col-xs-6">
      <h4>#right-well</h4>
      <div class="well" id="right-well">
        <button class="btn btn-default target" id="target4">#target4</button>
        <button class="btn btn-default target" id="target5">#target5</button>
        <button class="btn btn-default target" id="target6">#target6</button>
      </div>
    </div>
  </div>
</div>

[Bouncey]

cc @FreeCodeCamp/issue-moderators

We will monitor this issue, we need more data to be able to diagnose the problem. Please, if it happens again, comment on this issue.

For future reference, you can drag and drop images into the comment box and GitHub will upload it for you 👍

[raisedadead]

Closing as stale. Please comment if you are still facing this.