I'm new here and trying to publish a lecture. Everything was okay upto now. I uploaded more than 50 videos about my lecture and there was no problem. All the videos were seen as published. All of a sudden some of the videos became unpublished lecture. I delete them from the page and tried to upload again but nothing has changed. The new videos are all seen as unpublished lecture. I sent an email to support team but I haven't got a reply. Am I doing something wrong or is it something like a bug on the system?