I didn't get reputation changed notification in stackoverflow.com for one day(from morning to night) even after my reputation increases. After one day(today) I get the notification. Can it be ignored even if it takes so long time?
It wasn't a delay. Simply yesterday rep and inbox indicators weren't reflecting new notifications because of A Bug, but if you had clicked one of them you would have seen your new inbox or new rep changes. The bug was fixed, so you can see notifications again.