I have been using a Samsung Galaxy S3 (16GB with 16GB SD card) since June 2013. It is running Android ver 4.4.2. A couple of months ago I moved most of the apps from the device storage to my (external) SD card. I then noticed that quite a few of the app icon images disappeared, i.e., the name remained but instead of the icon image, all I see is a small dark grey square with text "SD"! Obviously this sometimes makes it hard for me to locate some icons. Help!
Is it possible that my SD card is having errors? I have not had any issues with it so far.