When things work and then suddenly stop working the question has to be – what has changed?
In this case it sounds very much like you may have added a new Wp plugin – or changed your Wp theme perhaps – and introduced javascript conflicts. Maybe along these lines; http://codex.simple-press.com/codex/faq/troubleshooting/what-is-this-jquery-conflict/

The Edit/Delete Posts buttons disappeared after we upgraded from 4.4 to 5.0. Now we have the latest version installed. Is there any diagnostic tool to troubleshoot this step by step?

Our current forum page view source shows this:

<link href=”http://www.pmchamp.net/pmpguide/wp-content/themes/OptimizePress/typography.css” rel=”stylesheet” type=”text/css”>

<link href=”http://www.pmchamp.net/pmpguide/wp-content/themes/OptimizePress/page-style.css” rel=”stylesheet” type=”text/css”>

<link rel=”pingback” href=”http://www.pmchamp.net/pmpguide/xmlrpc.php” />
<meta name=’robots’ content=’noindex,nofollow’ />
<link rel=’stylesheet’ id=’dap-css-css’ href=’http://www.pmchamp.net/pmpguide/dap/inc/content/userfacing.css?ver=3.4.1′ type=’text/css’ media=’all’ />
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-content/themes/OptimizePress/js/js_cookie.js?ver=1.0′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-includes/js/jquery/jquery.js?ver=1.7.2′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-content/plugins/simple-press/resources/jscript/checkboxes/prettyCheckboxes.js?ver=3.4.1′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-content/plugins/simple-press/forum/resources/jscript/print/jquery.jqprint.js?ver=3.4.1′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-includes/js/jquery/ui/jquery.ui.core.min.js?ver=1.8.20′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-includes/js/jquery/ui/jquery.ui.widget.min.js?ver=1.8.20′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-content/plugins/simple-press/forum/resources/jscript/msdropdown/msdropdown.js?ver=3.4.1′></script>
<script type=’text/javascript’>
/* <![CDATA[ */
var sp_forum_vars = {“problem”:”Unable to save”,”noguestname”:”No guest username entered”,”noguestemail”:”No guest email Entered”,”notopictitle”:”No topic title entered”,”nomath”:”Spam math unanswered”,”nocontent”:”No post content entered”,”rejected”:”This post is rejected because it contains embedded formatting, probably pasted in form MS Word or other WYSIWYG editor”,”iframe”:”This post contains an iframe which are disallowed”,”savingpost”:”Saving post”,”nosearch”:”No search text entered”,”allwordmin”:”Minimum number of characters that can be used for a search word is”,”somewordmin”:”Not all words can be used for the search as minimum word length is”,”wait”:”Please wait”};
/* ]]> */
</script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-content/plugins/simple-press/forum/resources/jscript/sp-forum.js?ver=3.4.1′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-includes/js/jquery/ui/jquery.ui.mouse.min.js?ver=1.8.20′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-includes/js/jquery/ui/jquery.ui.resizable.min.js?ver=1.8.20′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-includes/js/jquery/ui/jquery.ui.draggable.min.js?ver=1.8.20′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-includes/js/jquery/ui/jquery.ui.button.min.js?ver=1.8.20′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-includes/js/jquery/ui/jquery.ui.position.min.js?ver=1.8.20′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-includes/js/jquery/ui/jquery.ui.dialog.min.js?ver=1.8.20′></script>
<script type=’text/javascript’ src=’http://www.pmchamp.net/pmpguide/wp-content/plugins/simple-press/resources/jscript/sp-common.js?ver=3.4.1′></script>
<link rel=”EditURI” type=”application/rsd+xml” title=”RSD” href=”http://www.pmchamp.net/pmpguide/xmlrpc.php?rsd” />
<link rel=”wlwmanifest” type=”application/wlwmanifest+xml” href=”http://www.pmchamp.net/pmpguide/wp-includes/wlwmanifest.xml” />
<link rel=’prev’ title=’Day 6: Integration Direct and Manage Project Execution’ href=’http://www.pmchamp.net/pmpguide/day6/’ />
<link rel=’next’ title=’Initial Test Exam Questions’ href=’http://www.pmchamp.net/pmpguide/d00-pre-launch/initial-test-exam-questions/’ />
<meta name=”generator” content=”WordPress 3.4.1″ />
<style type=”text/css”>.broken_link, a.broken_link {

text-decoration: line-through;

}</style><link rel=”stylesheet” type=”text/css” href=”http://www.pmchamp.net/pmpguide/wp-content/sp-resources/forum-themes/default/styles/default.php?color=silver” />
<link rel=”canonical” href=”http://www.pmchamp.net/pmpguide/forum/project-management-framework/day-2-uniqueness-in-the-definition-of-project/” />

<script src=”http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js” type=”text/javascript”></script>
<script type=”text/javascript” src=”http://www.pmchamp.net/pmpguide/wp-content/themes/OptimizePress/js/cufon-yui.js”></script>
<script type=”text/javascript” src=”http://www.pmchamp.net/pmpguide/wp-content/themes/OptimizePress/js/qtobject.js”></script>

Please help. Thanks.

A link to your page would have been enough…

So I was correct in my assumption. Plus the second copy being loaded from the google cdn is also a very old version.

But you need to find out what is loading it as I have no way of being able to tell. Maybe theme or plugin but probably whatever one you started using when the problems began.