Every time there’s a system update, the settings for my email app revert back to standard ie no restrictions. It drains my battery quickly. The problem is, after I reset the restrictions, they turn themselves off again. I will set it to restrict background use, sleep when not in use and optimize battery usage. After a little while, sometimes same day, sometimes a couple of days later, those settings reset themselves to no restrictions and then the drain happens again. No other apps do this. How do I stop the email app from changing my settings once and for all. I should mention that I don’t want to delete the app, as I do use it. I just don’t want it to change the settings. I have done the cache partition wipe.