The plugin we use in our app for casting has been abandoned by its developers and it appears that it is not compatible with the 4th Gen Apple TV. We're currently looking into alternative solutions.
However, if you have an iPhone or iPad, you still can use AirPlay to get your video onto your Apple TV.
- Download your video from the In Cloud tab to the On Device tab
- Swipe up from the bottom to open the iOS command center
- Swipe from right to left (◄◄◄) to switch to the media tab
- Tap at the bottom where it says iPhone or iPad
- Tap on your Apple TV from the list
- Swipe down to close the command center
- Tap the Play on the video you wish to play