I’m pretty sure the 6000 in the debug log refers to the Installed Windows Patches Information analysis. Both properties, HotFixID, and InstalledOn, use a wmi call to retrieve the data. And each one is evaluated every report.
There have been reports of issues with wmi calls on certain models of computers elsewhere in the forums.
Perhaps you could try unsubscribing that PC from the BigFix Labs content site, or excluding it from the Installed Windows Patches Information Analysis.
Someone from HCL should be able to confirm if I’m reading this correctly.