Over the past month I have setup three fones with Android 4.3.  All went well but when I look in the gallery I don't see the "Auto backup" folder.   Photos backup fine to G+.

This was in a Galaxy S4  which worked with  4.2.2  but after update to 4.3 it vanished and  a Moto G  I just ran up up for the wife today and yesterday on my own account..

Any ideas??  Not a biggy as they are saved in Google+  but would like to know why..