Thank you very much for your knowledge base post.
Please execute the following command in a powershell instance on the targeted host machine.
$searcher = (New-Object -ComObject Microsoft.Update.Session).CreateUpdateSearcher();$searcher.Search("Type='Software'").Updates | Sort-Object -Property Dates -Descending | ft -autosize IsInstalled, MsrcSeverity
If you see a value 'False', it would indicate that indeed an update is currently missing. Then, please check for missing updates on the targeted host again.
If you don't see any False entries, please execute a sensor rescan and let me know what's the result.
Thank you in advance.