The default email app disables sync of all three of my email accounts on its own every day or two without fail. Anyone else had this issue? This just started for me. I find out when I click the refresh button in the email app and then get a notification at the bottom of the screen that "email sync is disabled." I go into settings and see that is the case. I enabled it for all accounts, then the next day, same thing over again. Anybody else have this?