Hi All,
I too am having problems with my SanDisk Ultra 64 GB MicroSDXC Class 10 UHS-1 installed in a Galaxy Note 2. Everything was working fine until the last few weeks. My phone was recently updated to Android 4.3 and now I am noticing this problem. Also I have about 39 GB of pictures and video on the card and also in the last few weeks I am getting corrupted pictures and videos when I take new images.
I tried reformatting the card in Windows and it says Format is complete. But then all of my pictures come back again.
Totally frustrating.
Joe
