How to open an iCloud document, when macOS can’t open it until it has been downloaded: the dog really did eat my homework this time.
Cirrus
How does the ‘Optimize Storage’ feature work? Indeed, does it work? A look at its confusions and a couple of bugs.
When does macOS decide to download new and changed items in iCloud Drive? This steps through the process from decision to completion.
How does macOS learn of changes which have taken place in iCloud Drive, such as the uploading of files from another system? Here the process is taken apart, and points of failure highlighted.
You’ve uploaded files to your iCloud Drive on another system, but an hour or more later other systems can’t see them. Here’s a solution.
When you upload a file to iCloud Drive, the steps involved are complex. They’re outlined and diagrammed here, with pointers to how to diagnose and resolve problems.
A new app to help you work out why those files aren’t uploading to iCloud Drive, and more. Performs a test upload which could even fix a problem.
The Eclectic Light Company 