Answers.Body: <p>I may have found the solution, but I'm not sure. </p>
  
  <p>At line 418 of civicrm/CRM/Case/Form/Activity.php there is this command:<br>
          <b>$params = array_merge($params, $oldActivity);</b><br>
  But this seems to be the wrong way round. I changed it to:<br>
          <b>$params = array_merge($oldActivity, $params);</b><br><br></p>
  
  <p>This change appears to fix the problem, but I don't really know what I'm doing, so no guarantees.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-03-25T08:58:25.973Z
Answers.Text: Now submitted as a pull request here:
  
  https://github.com/civicrm/civicrm-core/pull/8024/files
Answers.UserDisplayName: Jern
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-03-25T10:44:17.937Z
Answers.Text: PR committed as fix in 4.7.5
Answers.UserDisplayName: Jern
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-03-25T07:24:11.340Z
Answers.LastActivityDate: 2016-03-25T07:24:11.340Z
Answers.UserDisplayName: Jern
Answers.Body: <p>Verified now that the issue is a general problem with CiviCase in Drupal, Joomla and Wordpress versions. I have raised a bug report <a href="https://issues.civicrm.org/jira/browse/CRM-18290?filter=-2" rel="nofollow">here</a>.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-03-24T18:20:41.083Z
Answers.LastActivityDate: 2016-03-24T18:20:41.083Z
Answers.UserDisplayName: Jern
Answers.Body: <p>I know you aren't seeing errors in your logs, however, I did see errors when I attempted to change the Case Type.  Here's the link:
  <a href="https://civicrm.stackexchange.com/questions/10598/with-an-upgrade-to-4-7-3-civicase-has-become-inoperable/10606?noredirect=1#comment10786_10606">With an upgrade to 4.7.3, Civicase has become inoperable</a></p>
  
  <p>There's a comment, perhaps buried, about removing Roles from Case Types, and then things worked for me.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-03-24T20:21:40.033Z
Answers.Text: Thanks. Since the error only occurs in 4.7.4, and even occurs in a virgin version of CiviCase on the Demo sites (ie without adding any roles to the default case type), I assume that the problem is probably not related to the link you mentioned.
Answers.UserDisplayName: Jern
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-03-24T18:55:11.837Z
Answers.LastActivityDate: 2016-03-24T18:55:11.837Z
Answers.LastEditDate: 2017-04-13T12:53:13.167Z
Answers.UserDisplayName: G H
Body: <p>If I edit an activity (eg the date or the status) in the Activities tab of the Manage Case page, I get the confirmation message "[activity name] saved". But the edit is not saved.</p>
  
  <p>This problem only appeared after upgrading to 4.7.4. There are no JS errors, no errors on CiviCRM log, no php errors.</p>
  
  <p>Running Joomla 3.4.8. I can't test on the demo, because it's still on 4.6.</p>
  
  <p>Edit: just tried the Wordpress demo, and the problem is present there as well.</p>
  
  <p>Any suggestions where to look for the problem? Thanks.</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-24T11:55:02.807Z
Comments.Text: We can see this too.
Comments.UserDisplayName: thoni56
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-24T13:57:29.707Z
Comments.Text: Oh dear. I was hoping it was just me.
Comments.UserDisplayName: Jern
Tags: <civicase><activities>
Title: Edits not saving in Case Activity Tab since 4.7.4 upgrade
ThreadText: # Edits not saving in Case Activity Tab since 4.7.4 upgrade
  
  (Asked by: username_0 on 2016-03-24)
  
  If I edit an activity (eg the date or the status) in the Activities tab of the Manage Case page, I get the confirmation message "[activity name] saved". But the edit is not saved.
  
  This problem only appeared after upgrading to 4.7.4. There are no JS errors, no errors on CiviCRM log, no php errors.
  
  Running Joomla 3.4.8. I can't test on the demo, because it's still on 4.6.
  
  Edit: just tried the Wordpress demo, and the problem is present there as well.
  
  Any suggestions where to look for the problem? Thanks.
  
  **Tags:** civicase, activities
  
  > **Comments:**
  > **username_1**: We can see this too.  
  > **username_0**: Oh dear. I was hoping it was just me.  
  
  ---
  
  ## 3 answers
  
  ### Answer by username_0 on 2016-03-25. Score: 1 | Accepted answer
  
  I may have found the solution, but I'm not sure.
  
  At line 418 of civicrm/CRM/Case/Form/Activity.php there is this command:  
  **$params = array\_merge($params, $oldActivity);**  
  But this seems to be the wrong way round. I changed it to:  
  **$params = array\_merge($oldActivity, $params);**
  
  This change appears to fix the problem, but I don't really know what I'm doing, so no guarantees.
  
  > **Comments:**
  > **username_0**: Now submitted as a pull request here:  https://github.com/civicrm/civicrm-core/pull/8024/files  
  > **username_0**: PR committed as fix in 4.7.5  
  
  ---
  
  ### Answer by username_0 on 2016-03-24. Score: 1
  
  Verified now that the issue is a general problem with CiviCase in Drupal, Joomla and Wordpress versions. I have raised a bug report [here](https://issues.civicrm.org/jira/browse/CRM-18290?filter=-2).
  
  
  ---
  
  ### Answer by username_2 on 2016-03-24. Score: 0
  
  I know you aren't seeing errors in your logs, however, I did see errors when I attempted to change the Case Type. Here's the link:
  [With an upgrade to 4.7.3, Civicase has become inoperable](https://civicrm.stackexchange.com/questions/10598/with-an-upgrade-to-4-7-3-civicase-has-become-inoperable/10606?noredirect=1#comment10786_10606)
  
  There's a comment, perhaps buried, about removing Roles from Case Types, and then things worked for me.
  
  > **Comments:**
  > **username_0**: Thanks. Since the error only occurs in 4.7.4, and even occurs in a virgin version of CiviCase on the Demo sites (ie without adding any roles to the default case type), I assume that the problem is probably not related to the link you mentioned.  
  
  ---
  
  