The Overview Dashboard within Extreme Management Center had 6 blank report windows.
Extreme Management Center
The Overview dashboard appeared to have been edited, but no reports were added, just the layout. The new report is called nmsDashboard.xml and is located in /usr/local/Extreme_Networks/NetSight/appdata/OneView/MyReports
To get back to the original report do the following.
1. Delete nmsDashboard.xml from /usr/local/Extreme_Networks/NetSight/appdata/OneView/MyReports
2. Change to the following tab within Extreme Management Center: Reports > Reports.