I can't seem to find anybody else having this issue but it's happened twice now on two different brands of SD card.
I load all my music onto a 64GB SD card and it plays fine in the car. I safely eject the SD card through the infotainment system and when I put it into my computer it tells me something is wrong with the card. From there I can't delete or add or edit anything on the card, but I can read from it just fine. The previous card I couldn't even format again and had to RMA it. Now the same thing is happening to another card I have.
It seems MIB II does something to any SD card that is plugged into Slot 2 that makes it require a format. Luckily, I was able to format the second card, unfortunately, I had to transfer over 64GB of music all over again...
I load all my music onto a 64GB SD card and it plays fine in the car. I safely eject the SD card through the infotainment system and when I put it into my computer it tells me something is wrong with the card. From there I can't delete or add or edit anything on the card, but I can read from it just fine. The previous card I couldn't even format again and had to RMA it. Now the same thing is happening to another card I have.
It seems MIB II does something to any SD card that is plugged into Slot 2 that makes it require a format. Luckily, I was able to format the second card, unfortunately, I had to transfer over 64GB of music all over again...