Shared Photos album stopped synching on MacOS, no problem on iOS
My son shared a Photos album with me a year ago. It worked fine up until May 9 when he shared new photos. I saw them on my iPhone 11 and thought, great.
A few days ago, I tried to look at that album on my MacBook Pro, and none of the new photos he has shared since May 9th have synched. I checked my iMac, and it's the same. I just updated both computers to MacOS 10.15.5 and it still won't synch. Does MacOS no longer support shared albums?
How can I get my MacOS machines to update this shared album when iOS has no problem showing all the new photos?
MacBook