Final Status: The issue has not been reproducible since the problematic update was fully disabled; however, if reoccurrences of this issue are encountered users are advised to close and reload Internet Explorer.
User Impact: The affected users were experiencing a blank “Files” and “Notes” tab when using Internet Explorer.
Customer Impact: Analysis of incident scope indicates that a very limited number of customers and users appear were impacted. Engineers received a few isolated customer reports of this issue.
Incident Start Time: Wednesday, December 16, 2015, at 6:30 PM UTC
Incident End Time: Thursday, December 17, 2015, at 12:09 AM UTC
Preliminary Root Cause: A recent update intended to enhance Yammer functionality resulted in service impact.
Next Steps: The following is a list of known action item(s) associated with this incident. As part of the Office 365 problem management process, additional engineering actions may be identified to improve the overall service.
– Action: Review the infrastructure update process as a recent update intended to enhance the service resulted in degradation to a portion of the Yammer functionality.
Please consider this service notification the final update on the event.