Yesterday we have scheduled one server for patching and found that the server has 3 missing patches to install. After patching, those 3 patches installed in the server successfully.
But later we observed that the patches we are actually trying to install did not get either installed or showed as missing in the patch scan. These patches are already added to the template before we initiated the scan. Surprisingly we could able to install the patches manually in the server.
My question is why these patches were not shown as missing when it get scanned & how installed manually.
The first thing I would recommend doing is, in your scan template General tab, selecting to look for Missing, Installed, and Effectively Installed patches so you can make sure the patches aren't falling into any of those categories.