I have repeatedly attempted the 10.13.3 update. It appears to be updating, restarts and shows progress bar for install but once restarted the update has not been installed and the App Store app gives me the message "Some updates could not be installed automatically." And my iMac, about this mac still reads "10.13.2". What is the problem? Are others having this problem? My Mac is a iMac (Retina 5K, 27-inch, Late 2014).
Please restart the NVRAM per the directions in How to reset NVRAM on your Mac - Apple Support and if that does not work please restart in Safe Mode per the directions in Use safe mode to isolate issues with your Mac - Apple Support
It could also be a problem with the download, the server or your connection to the App Store. If you are still unable to properly update after following rkaufmann87's advice, try the 10.13.3 Combo Update, at > Download macOS High Sierra 10.13.3 Combo Update
That was it. Worked perfectly. Thanks so much.
You're welcome!
Some updates could not be installed automatically.
