Today’s update — could it be fixed?
Test 1: New review + four photos = review and photos show up nicely together!
Test 2: A few days old review where photos weren’t showing — deleted and reuploaded = 13 photos now visible with the review!
Test 3: A month-old review where photos weren’t showing — deleted and reuploaded = photos now visible!
That said, photo processing for reviews is clearly taking much longer now. I’m uploading compressed images, so it’s not a size issue. Even after the review was approved, the photos weren’t initially visible — but after checking back in about an hour, they appeared.
So it seems Google is approving things more slowly… but it works.
Unfortunately, it seems that for older reviews where the photos weren’t showing, you’ll need to reupload the photos for them to appear properly.