We've now resolved the incident. Thank you for your patience.

To clarify the previous notice, this refers to any update made when the video is in "Premiere Mode" (users can see when the video will premiere and the static thumbnail).

We've identified a glitch regarding YouTube Premieres causing content to go live/public early.

If an update is made to content (any metadata including descriptions, keywords, etc.) while the video is in "Countdown Mode", the update will cause the video to go live immediately.

We're working with YouTube to resolve the issue. In the meantime, refrain from making updates to content while the video is in this state.