Can you explain this

every time i post a video (this would be my 5th video on this account) it says "video published" and then it disappears. it doesn't go to drafts, it doesn't go to checks, it just disappears after saying video published.

Can someone tell me how to fix this? i uploaded online, and on the app. same result. they pass the checks, and there's no nudity or swearing in the content even. i'm confused.