Summary

When trying to add a field to an issue using the "Add field" link from the issue navigator, a new modal window opens and displays the following message:

The JIRA server could not be contacted. This may be a temporary glitch or the server may be down.

This started yesterday and can still be reproduced today in our system.

Steps to Reproduce

1. Navigate to an Issue, and view the issue in Issue Detail View
2. Select the Admin dropdown, and select Add Field
3. The error message will appear

Expected Results

This should bring up the Add Field dialogue

Actual Results

The error is thrown and the following errors can be seen in the browser console:

GET batch.js?agile_global_admin_condition=true&atlassian.aui.raphael.disabled=true&hasConnectAddons=tru…:6262 https://<instancename>.atlassian.net/rest/globalconfig/1/issuecustomfields/null/fields?onAllScreensFlag=true&_=1456866446792 404 (Not Found)

Workaround

If you search for the issue using Issues > Search for Issues, and attempt this action in the Issue Navigator View and not the Issue Detail View, the Add Field action should work. Tested and verified.