I'm also having issues with notifications since a couple of days, Gmail is completely silent as well as the weather app, the clock widget is showing the warning symbol instead of weather and I have to open the weather app manually in order to get the widget refreshed.
morenomiguel1986I've sent you two a PM with log instructions. Maybe your logs can tell us more than the ones we already have. I hope we can see a pattern with your help
Same issues for me, I don't get any Gmail notifications unless I restart the phone every couple of days.
Same for the weather widget not updating by itself in background.
Many apps have delayed notifications when it happens, it's irritating having to wake the phone up to check for notifications, that's not how notifications should work, it should notify you, not you having to check if there's delayed notifications.
If this issue is tied to a background service, maybe add a setting to auto-restart the phone at night like Samsung does.