As I said you will get a bigger difference when doing a manual program update as that isn’t as critical to get the very latest VPS but to get the latest program version.
A program update should always be followed by a reboot, so anything before that I feel isn’t really going to be 100% accurate.
Why this happens in the case of the manual update of the VPS I don’t know, but I guess it requires the UI to be refreshed, bug I don’t know.