I purchased a Mavic Air in September 2019. I have been amazed at the footage in 4K on my Samsung smart TV. Approximatley a month ago the TV stopped recognizing the files on the card. It recognizes the drone but none of the pictures or video. I also tried another LG 4K smart tv with the same results. I have always connected it to the tv with the included usb cable. Any thoughts?

I purchased a Mavic Air in September 2019. I have been amazed at the footage in 4K on my Samsung smart TV. Approximatley a month ago the TV stopped recognizing the files on the card. It recognizes the drone but none of the pictures or video. I also tried another LG 4K smart tv with the same results. I have always connected it to the tv with the included usb cable. Any thoughts?