This is for MacOS 10.14.5
Microsoft AutoUpdate is v 4.12
Office Updates are 16.26
Worked with first level support to completely clean my Mac of all microsoft products and reinstall latest package.
Ran in SAFE MODE no change.
Ran Cocktail and Disk Utility no change.
Repaired permissions no change.
I post this issue (which I believe is only showing up on my Mac - others in our house don't do this - every time an update occurs. First MAU comes up with an update to itself which doesn't download, then I take a new copy of MAU off the MS website and install
it manually, then it works and shows the new updates which then won't download - same issue, so I then download the whole MS office and install it, then everything works again until the next autoupdate which then has the same issues.
Watching the progress bars it appears that the files just don't want to download and save in whatever spot it's trying to put them.


Just to clarify - I have MAU 4.12 now, and I have Office 12.26 installed. Everything is the latest. But MAU runs and says a new MAU needs to be installed and that is 4.12.0 and when it tries to download is when this happens.