Ok so I'm uploading the images via a USB cable. My Macbook (Sierra 10.12.6), iPhone(11.4) as well as Photos(version 2.0) have the latest software. I've noticed this happening ever since i switched to the iPhoneX. When the cable is connected sometimes the live photos and some videos don't show up at all. I've repaired the photos library twice then the live photos show up once I connect my phone using a USB cable but they only show as grey boxes. Can only see old live photos in the side bar. If i double click it just selects the blank grey box for import.