Two compact, foldable quadcopters – DJI’s Mavic Pro and GoPro’s Karma – hit the drone market in quick succession last month, but it soon became clear that the former was having issues with production.

Last month, DJI announced its very cool new Mavic Pro drone, a tiny, foldable, super smart UAV that can do lots of cool tricks. There’s just one problem: The shipment date has come and gone and ...