I use a SanDisk 65 GB memory card. I am unable to use the apps when I transfer them to SD cards. It says that you can not use app, it's in SD card.
Even when you go to uninstall them, it will display that app will be stored in SD card.
I have started seeing this issue after I had formatted (factory data reset) my phone. Earlier I was able to use app present in SD card.
