Change 1000+ of WordPress Featured Images in 5 Minutes! › Forums › Questions and Answers › Not adding featured images when saving a scheduled post › Reply To: Not adding featured images when saving a scheduled post
Youtube just generated some of the thumbnails – but not all. I used this service to check. http://thumbnailsave.com/
As for the doubles bug – it’s happened both ways. It’s doubled an image already on the server that was uploaded by me and added to the story, and it’s doubled an image it had to download and upload to the library but uploaded it twice.