Your problem has been commented 100 times at least !
Why the memory card isn't recognized
The problem stems from the way Macs handle SD cards and storage volumes. The drone's SD card is factory-formatted with a file system that, while...
Of course...<;^)
FWIW, the Phantom 4 Pro does the same...so I've heard...<;^)
Honestly, any software that isn't actively guiding the drone will simply upload waypoints, which the drone will follow autonomously provided the mission is programmed...
So after unearthing my MP a few days ago I spent some time testing it on the deck. I still needed to do a couple calibrations; (1) IMU, and (2) GPS. In advance, I was watching a YT video to refresh my memory. I was successful with the GPS...