I also didn't get a YT notification. But saw your twitter post about it.
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Jeez. This seems like basic level - notify subs. I dont understand what the issue is. It's terribly frustrating and it's sad that I have to rely on Twitter to inform ppl about content I put out on another platform, especially when I spend hours out of my day making that content.
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I wasn't notified either
but now I know and I'll be off 
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Downloaded for later, hopefully YT still pays you for the view
End of conversation
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