Amzn FireTV 2, HEVC/x265 2160p 4K video "not supported by device"
I have an Amazon FireTV 2, and a 4K UHD TV.
I have confirmed that the Fire TV2 can play 4K content on the TV via other apps (eg. mrmc). (TV reports 3840x2160 resolution)
I know the FireTV2 supports HEVC/x265 video at up to 30Hz for 4K playback.
When I try to play back the following content in Plex, it gets transcoded to 1080p because my apparently my device doesn't support it.
Duration: 01:40:28.76, start: 0.000000, bitrate: 6248 kb/s
Video: hevc (Main 10), yuv420p10le(tv), 3840x1904, SAR 1:1 DAR 240:119, 23.98 fps
Any ideas about what's going wrong?