AirDrop stuck forever in "Preparing..." stage
I'm trying to transfer a video clip from my iPhone 7 to my MacBook using AirDrop.
AirDrop is stuck on the message "Preparing..." for half an hour now! The indication that something works isn't clear: the pie symbol doesn't change for many minutes, but I think it changes every 5-10 minutes or so.
It was stuck a very long time (5-10 minutes) in preparing stage for a short clip of less than two minutes, but at the end it made it through. Now I'm trying to transfer a clip of almost 30 minutes.
I tried Image Capture, but that too doesn't work well: it simply doesn't show some of the photos and videos I took recently, so I can't download them with Image Capture.
Help 😐
MacBook Pro with Retina display, OS X El Capitan (10.11.6), Traktor Pro 2 software for DJ's