I understand what you are saying. It is still clicked (which I know to be true because I checked that from my end) and you are not getting them. I do not have an answer for that because mine are still working and nobody else has mentioned this so no idea why yours is not working. Try turning off all your notifications for a day and then go back and turn on the ones you want (emails , PM notifications, pop-up , etc.) after they have all been off for a day to "re-set" it so to speak.