It’s easy from the perch of writing the Mac 911 column to appear as if I have all the answer. Dear readers, I do not. I am always delighted to research on your behalf, but sometimes problems fall into my lap that I know will help you all, because I’m unable to find a ready solution and nobody in any forum or on any blog has found an answer, sometimes across many years.
Photos for macOS is a bugbear for many of you, one of the most regular sources of questions. But I encountered a sync problem that no one has written in about, yet I can find a history of frustrated people across the Internet trying to solve it. I did find a solution—but you might not like it!
My problem emerged a few weeks ago, when I noticed that Photos for macOS on my office computer, an iMac running Mojave, was out of date. I checked my laptop Mac, my iPhone, and iCloud.com: photos were synced and up to date in each of those locations.
Read more at MacWorld.com