@TeamYouTube yesterday’s upload video had 50% lower views than average with multiple reports of notifications not received. I had to delete it and I am currently re-uploading it. Is your notification system working?
There are no related technical issues. Make sure you select 'Notify subscribers' under advanced settings when you publish your video. Also, your subs can check their account and notification settings: https://goo.gl/PdDKZW