Following up — while we continue to fix this issue with realtime data, we’ve also temporarily disabled smart insights in YouTube Studio. Creators, this means you won't see headlines about your video’s performance on the dashboard.https://twitter.com/TeamYouTube/status/1159506339879632897 …
Most channels hear back in less than 30 days. Each application is manually reviewed, so it does take a bit of time! Hope you hear back soon – in the meantime, here’s a bit more info about the review process: https://yt.be/help/YPP-review