Hi Danilo,
Thanks for your suggestion. I will extend and discuss with our developer regarding and see if it that possible to fit all the other youtube video or not. This is because on what you've reported yesterday, some of the video do not have sddefault.jpg, where it only have hqdefault.jpg
You can refer the images attached, with 2 different video that consist both format and only have the hqdefault.jpg format. However, our system is smart enough by checking and used the sddefault.jpg first instead of the hqdefault.jpg on the stream.