I have a 64gb Sandisk extreme pro card in Mavic Air. Reads fine in the MA and I can access photos and video through the Wi-fi controller to iPad. No errors. Can record to it also. If I put the card in a PC or attach the drone using USB to PC then I get error saying card needs reformatting. I have one 4K video of a buzzard ‘swooping’ around drone and wanted to process / view on PC. DJI app won’t allow to copy 4K video (nor to Android tablet either). I can download photos and 1080p video. It seems there is a card issue that the MA is fine with but that windows isn’t. Any ideas on how to extract the video using the DJI app?