I have noticed on both my iPad and iPhone that some Shared Albums have a funny behavior - when I tap to go into them, all the photos are a gray square - and then over about 3-4 seconds, they all populate. Then, that album won't exhibit that behavior any more. It's like Photos gets stuck populating the shared albums or something. I have tried device restart, and sometimes in the past I have turned shared albums off and on and it eventually populates all the albums (I have about 180 albums, under the 200 limit), although populating of course can take several hours. Sometimes the shared albums off/on does not fix it too.
Have you seen this, and is there a fix other than just manually checking every shared album and let it populate?
Have you seen this, and is there a fix other than just manually checking every shared album and let it populate?