I have added some "Step 2 - Create extra fields for video article" it seems that without extra field it dose not work, just one problem remains i have 3 videos visible out of 4, and they are all created with "save as copy".
LE: from what i have managed to see by creating more articles in the video category, it seems that not all are displayed, if a create a new article it not displayed but if a save it as a copy its displayed immediately.