Black Screen - is it the Android TV or some configuration?

[jellyfish]

Here is what happened when I changed "Max streaming Bitrate" to Auto, I can see it starts to Transcode!

[2023-07-08 10:15:21.204 +10:00] [INF] [4] Jellyfin.Api.Helpers.MediaInfoHelper: StreamBuilder.BuildVideoItem( Profile="AndroidTV-ExoPlayer", Path="/data/media/movies/My 4k content .2160p.BluRay.REMUX.HEVC.DTS-HD.MA.TrueHD.7.1.Atmos-FGT.mkv", AudioStreamIndex=null, SubtitleStreamIndex=null ) => ( PlayMethod=Transcode, TranscodeReason=ContainerBitrateExceedsLimit ) "mediavideos/XYZ/master.m3u8?MediaSourceId=XYZ&VideoCodec=hevc,h264,hevc&AudioCodec=aac,mp3,ac3,eac3&AudioStreamIndex=3&VideoBitrate=7884076&AudioBitrate=1536000&MaxFramerate=23.976025&api_key=<token>&RequireAvc=false&Tag=XYZ&SegmentContainer=ts&BreakOnNonKeyFrames=False&hevc-level=153&hevc-videobitdepth=10&hevc-profile=main10&aac-audiochannels=8&TranscodeReasons=ContainerBitrateExceedsLimit"
[2023-07-08 10:15:22.663 +10:00] [INF] [92] Jellyfin.Api.Helpers.TranscodingJobHelper: Killing FFmpeg process for "/config/data/transcodes/XYZ.m3u8"
[2023-07-08 10:15:22.685 +10:00] [INF] [92] Jellyfin.Api.Helpers.TranscodingJobHelper: Deleting partial stream file(s) "/config/data/transcodes/XYZ.m3u8"
[2023-07-08 10:15:22.827 +10:00] [ERR] [92] Jellyfin.Api.Helpers.TranscodingJobHelper: FFmpeg exited with code 137
[2023-07-08 10:15:24.298 +10:00] [WRN] [145] Jellyfin.Server.Middleware.ResponseTimeMiddleware: Slow HTTP Response from "http://IP Address:8096/Sessions/Playing" to "IP Address" in 0:00:03.001336 with Status Code 204
[2023-07-08 10:15:24.351 +10:00] [INF] [92] Emby.Server.Implementations.Session.SessionManager: Playback stopped reported by app "Android TV" "0.15.11" playing "my 4k content". Stopped at "54822" ms