Photos missing from Photos.app export
Photos.app is silently failing to export all the photos. I have been doing drag-and-drop exports from photos to a folder in the Finder. It usually works great, but I have seen that sometimes all the photos are not transferred.
There is no error message, and no way to know exactly which photos didn't get exported. I just dragged a selection of 602 photos from Photos to the Finder. Only 385 photos actually appeared in the destination. It usually works for smaller numbers of photos, but sometimes just a handful of photos are missing. This would be easy to miss, and could be crucial.
When dragging, I see the red number indicating the correct number of files. The destination disk has plenty of space.
Photos Version 4.0 (3441.7.100)
MacOS Mojave 10.14.4
Mac mini 2018 or later