@TeamYouTube Could you please Help me I have 2k Subscribers an dthey we’re asking me why they wet not receiving there Notifications when a Video I post is released?? Even when they have clicked the notification bell when subscribed could anyone else help? If Pos Thank You 
Thanks for the info! Just to confirm, have you selected "Notify subscribers" under advanced settings? Also, your subs can check their account and notification settings here: https://goo.gl/PdDKZW