*Update*

The issue has been resolved. We apologize for any inconvenience.
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Previous Description (2015-04-15 09:26:20):

When editing Legacy WebPublish pages in the Authoring environment (authoring.wp.queensu.ca), the rich text editor does not display. ITS is looking into the issue. Please avoid editing pages until this is resolved.

This does not affect live sites, or the Drupal WebPublish environment (webpublish.queensu.ca).