Hello, I just completed filming my footage on my Mavic 3 and I turned it off, exported the battery and then exported the Sd card, which I inserted in my mac. Although every file is there, only a few of them have a specific amount of space used in the Sd card (the others occupy no more than 262KB) and only one is readable with quick time player or vlc (they are all of them d log files). Same in PC and media player, which says it does not support the file type. I read in a forum discussion that I should have exported the Sd card as the drone was on, to "close" the file. So, I inserted the card back in, powered on the drone and suddenly, the Sd card became "unavailable" as a storage option (see the photo below). I exported and reimported it in the drone, without any success. When exported, it says the Sd card slot is empty (as indicated in the attached photo), and when it is in, it is unavailable. Note that every time I was filming, first I was turning off recording and then I was landing and powering off the drone. After that, I cannot access the content of the Sd card through the app (which I could previously do), or my mac. Note that I am using a brand new Sandisk Extreme 256GB U3 V30 A2. Does anybody have any idea who to fix the problem? Shall I use SanDisk's RescuePRO Deluxe to recover the files (although they are not damaged)? I attach a screen shot of the files, as they appear in the finder. Thanks a lot!