I’ve noticed on my older apps that I first made on SkyBuilder have a bug on android when you click on a video to be played. It takes you to the YouTube page, however, you cannot play any of the YouTube videos once you are there. This has only affected my older apps that I first made and that I have not updated ever. There are a few apps that were made around that same time that I updated (just to add EverBadge or Wallpapers) recently and their YouTube videos work fine now. So, if you have an older app then you probably want to just make an update to it if it is having this error as well. I guess SkyBuilder fixed the issue but if your app is older than the fix then you should probably update.