Photos application doesn't load or import
Tried to transfer 20,000 of my iPhone photos into my Mac Book but when i open "photos" to import, they only list 13,000.
Next, all the photos appear as grey square and do not load at all.
I tried proceeding with the "import" button but it does not seem like anything is being imported at all, even after many hours.
MacBook Pro (Retina, 13-inch, Mid 2014)