iCloud Photo's stopped syncing....

Bryan E. Thompson wrote:

My photos.app on both my Mac and iPhone have been syncing flawlessly for years. This morning I noticed pictures and folders stopped syncing. When I looked at my iCloud system preference, I saw the Photos checkbox was unchecked. When I tried to enable it, I got an error that iCloud photos is only available on macOS Standard, macOS Extended and APFS formatted volumes. My drive is formatted APFS. Any ideas?

Again, iCloud photos has been working for a long time, and the only recent change I made to my Mac was updating the OS to 10.14.5 yesterday -- I'm guessing that is to blame??

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I have seen no issue as you describe along these lines.

Did you try signing out of iCloud and back in again.

Get help with iCloud Photos - Apple Support

Bryan E. Thompson wrote:

My photos.app on both my Mac syncing flawlessly for years.

my Mac was updating the OS to 10.14.5 yesterday -- I'm guessing that is to blame??

[Personal Information Edited by Moderator]

You do not state what exact Mac/model/size/year/touchbar this is ?

One thing I see is your HD is critically full. If this is an SSD—they actually need ~25% free space to work efficiently.

Another question would be if TRIM is enabled on this, if an SSD?

Mechanical HD need at least 10-15% free space to at least function.

You are down to ~12% How to free up storage space on your Mac - Apple Support

This may not be your exact resolve—but you will be heading in the right direction.

See this article https://support.apple.com/en-in/guide/disk-utility/repair-a-disk-dskutl1040/mac

Ha ha, good work anyway, thanks for the report. :)