Thanks for reaching out. We've seen multiple reports about notifications from other users too and are currently looking into it. Also, are your subs reporting that your videos aren't showing up in their subs feed? If so, share a few screenshots from them and we'll take a look.
@TeamYouTube is something wrong with the notification system and sub boxes? My videos this week have seen a severe decline in views and it makes no sense.
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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