@YouTube is so annoying I have my notifications on for @UpUpDwnDwn and I have for a while and I have NEVER ONCE been notified when a video is uploaded
fix y’all app
Are you using iOS or Android? In addition to the channel subscription settings (tap the bell > all notifications) check your notification setup on the YouTube app & your mobile device to make sure you've opted-in to receive all notifications: https://goo.gl/UxsVCh . Let us know!