Some videos took longer than normal to appear in the subs feed this morning. The issue is now fixed, thanks for your reports! More details: https://goo.gl/RTqoWa
My video was schedule to go live at 9am this morning, it took 14 minutes to show up on my channel and get sent to subscribers... it didn’t even show up for me until then, yet even my private videos show up on my channel. It just disappeared entirely for those 14 minutes. 
YouTube Content Creator 30,000+ Subscribers. Creator Code: APOQSI