Yes....
This is what I did....
I umounted my SD card.... Then remounted the SD card (This is located in Settings> SD card and Storage> Unmount, Remount)
Once the card was remounted properly, all my app's that were on the SD card appeared and worked fine.
Then I moved all the app's that I had on the SD card back over to the phone (off the card).
Once everything was moved off the card, I did a power down reboot (power down and pulled the battery).
Once the phone booted up, I then moved a couple of app's back to the sd card to test. Powered down again and battery pulled.
Booted the phone back up and although it took a few minutes the moved apps to sd card appeared and worked fine.
I then moved all the app's to the card (rebooted with a battery pull) and they seem to be all there and ok.
The question is now the downloading of new app's... if you download a new app and place it on the card, does the above have to be done to get the app to show.
Lego