Blogger does not show correct preview image for youtube playlists - workaround

If we embed a youtube playlist in a blog post on Blogger, the preview image for the post shown on index pages is the youtube broken link preview image. My workaround was to embed the videos in the playlist BEFORE the playlist on the same post, in reduced size - only 81 pixels wide. Then the preview shows the preview image of the first video embedded, and all is well.