Report Empty

Hi,
I am trying to run the canned report templates that come with Satellite 6.8.3. But most of the two reports when I try and generate have no data in them (when there really should be). The two reports are:
Host - Applicable Errata
Host - Applied Errata

I just published a new version and applied the errata to one of my hosts. I ran a report of applicable errata before I ran the patches and then I ran the applied errata report after everything was complete and I just get the headings:
date hostname erratum_id erratum_type status

No data...

I am getting these delivered to email in CSV format. They come as .gz and I unzip with 7zip.

Any help would be much appreciated. Thanks.