I have 4 different domain groups and the results for all 4 are 'Not Scanned'. I can run a manual scan that works. 

When I first go to the Inventory tab, there is a banner up top saying the "Inventory Summary Reports are not up-to-date". When I generate the new report, the last scan dates are still from when I've done the last manual scan.

Has anyone else seen this? Any fix?

Thx.