I have Data Saver running and have encountered a problem. It's not allowing apps with full permission to run. When downloading a book from the Nook app, I would get an error message telling me "Cellular data for Nook must be enabled" and wouldn't allow me to download. In settings, mobile network is enabled. I also allowed Nook to run background data and allowed to run while Data Saver is on. The app basically has full permissions. The only way it will download on the mobile network is by turning Data Saver off (even though the app is permissable). Every thing I've found just tells you how to give the app permission to run while Data Saver is on. It has permission and still doesn't work so now what do I Do?