Why does patching work sometimes quickly and sometimes it doesn't?

Why does patching work sometimes quickly and sometimes it doesn't?

Hello, we have a problem or doubt that has us very worried. Sometimes we need to send security patches to a particular server, for them we do a manual task and select the "fastest" options for this. The problem is that sometimes it works smoothly and other times, it just takes hours to make it work, or nothing just happens. I have reviewed the documentation and there is no problem indicated in that document. There should be an easy way to trigger updates to servers.

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