Hello oscarc619,
Chances are; the update(s) in question were Superseded. The Compliance Reports are reflecting the PMImport.cab data changes.
As the Clients recieve the updated catalog.xml file from the current PMImport.cab data; they will run a Windows System Assessment Scan, return Patch Inventories, and be dropped from that Software Update's IsApplicable=TRUE rule.
You may view the Console > Reports > Software > Patch Management > Software Bulletins > Windows Superseded Bulletins report, for that will display what has been Superseded and by which Bulletin.
If you would like to review Patch Inventories; please work through KM: HOWTO60750 - Troubleshooting Patch Inventories, and that will help to confirm if updates are targeting properly.
Hope this helps,
Joshua