Youtube thumbnails do not load in video block

After adding a video block and inserting the youtube video link, the thumbnail never loads. Because the thumbnails never load in the video block, the video block is useless. This has been an ongoing issue for months and is very frustrating. Having a title with a link is NOT the same as having the clickable video link with picture. It seems like a lot of people have had issues with the video block, specifically with youtube, in the past. Any chance on getting an updated version that...actually works?