There weren't any problems with the Live Update, which always worked as it was supposed to, the only problems might have been in some cloudflare nodes, which would result in the same files downloaded over and over.
Now, if you read the release notes for the Offline installer, it says some files are supposed to be always downloaded so, if you are seeing *just* those being downloaded over and over, it means your local cloudflare node is completely updated, so you don't need the Offline installer anymore.
If you see *other* files always redownloaded (other than the Airport services and the jetway replacement sceneries ), then you must still use the Offline installer. Would be helpful to us if you said which ones.