App has disappeared from Home Page and can't be added from Widgets.

[AC Question]

The Weather App has disappeared from the Home Screen on Samsung Galaxy S4. When I try to add it from Widgets, it will not add and I get the message "this widget has already been added to the Home Screen". But it is not visible. Help!

 

[dpham00]

Mod Note, I will move this to the s4 forum for more visibility