All of the above again, with a support tech in chat. Fixing disk issues in repair mode (none were found).
Manual download and install of the update. You can try updating again in the App Store after restarting.' It gets ~5% through a progress bar then pops up an error message: 'The update was not installed successfully. The current pending update is 'Security Update 2019-003-10.13.6.' When I attempt to install the update: I'm having difficulty installing the latest update on my Mac Mini from 2011 (macmini5,3).
