YouTube has changed the way we must access video data. This means that our apps need to fetch video data for your favorite YouTube celebs in a new way, as the previous way has been “disabled”.
You would notice that all of the latest video content is still there, it’s just that the topmost video is not from your favorite content creator.
We are working on a fix and hope to release updates to all of our apps soon – sorry for the interruption in mobile viewing enjoyment.