Galaxy S6 :: Apex Pro Isn't Showing Icons Within A Folder On Home Screen Any More

I have recently updated my samsung galaxy s6 to android 5.1.1, since updating, my launcher, apex pro isn't showing the icons within a folder on my home screen any more, its basically a folder that contained all my game apps.I assume the issue was apex in someway maybe not being fully compataible with 5.1.1 but im not sure? Th odd thing is, when i open tap the game folder, even though its all blank with no icons, they do seem to be there, but just invisible, if i tap where i know apps used to be in the folder, they do actually stop open, which is odd.

I have tried deleting the folder then doing a restore in apex but the same thing happens.Also since updating to 5.1.1 some screens have also been a little laggy and my home screen was just black at one point and just showing the notification section / time but everything else was black and wouldn't go off, i had to restart phone to get it back to normal.