I have a web app that plays two videos on the same screen. This web App is working well on fire stick devices through browsers like Silk Browser. I want to migrate this web app to a Fire TV app like is explained on this link https://developer.amazon.com/docs/fire-tv/migrating-your-web-app.html .When I've been testing this app with the Amazon Web App tester only one video is showed, the other is not playing on the screen, has disappeared. Why does that happen? Is there any solution?