Ummm, well I moved a lot of my apps to the SD card and noticed that the icons on the home screens went grey with a little "sd" on them... very odd. And of course, some of those grey sd icons tell me that the app is not found. Really? So, one might think...well not a Android OS odd thing, but poorly written apps. Ok... I went to my Note 3 (which of course has a slightly different rev of 4.3), with the same apps... I moved some of these to the sd card... yeap no grey sd icons.... yeap no issues... yeap same apps... yeap same move method using the app manager... YEAP ODD.
~ScottGeek