Transcoding issue with HEVC 10bit

Latest Shield version that I can get: 8.2.0 (32.6.435.1)
image

I’m also on 59.94 Hz, and the default is RGB 8-bit but I changed it to YUV 420 10-bit as I couldn’t find any way to properly render 10-bit files with the default RGB 8-bit setting (with any app at all, even Kodi was washing out the colours):

I found the logs related to this stream [1] and if I am reading it correctly…

For the audio, Plex “transcodes” it (actually just copies it) because it’s not the first audio stream and direct play seems to be only enabled for the first stream.
“direct play stream selection is not enabled” << how can I enable it?

For the video, Plex seems to be transcoding because the colour profile (smpte2084) is not supported for remux (supported: bt709, bt470m, smpte240m, smpte170m, bt470bg, bt2020-10).

For both (?), Plex seems to be transcoding it because of the HLS protocol.
I’m not sure what that protocol is but the fact that I can direct play it in Kodi or Plex for Kodi makes me think my Shield supports it just fine… How can I tell Plex to direct stream it?

[1] Logs

09:06 Debug — Codecs: 10-bit HEVC test succeeded
09:06 Debug — Scaled up video bitrate to 38560Kbps based on 4.500000x fudge factor.
09:06 Debug — MDE: Selected protocol hls; container: mkv
09:06 Debug — MDE: analyzing media item 14439
09:06 Debug — MDE: Movie Name (YYYY): Direct Play is disabled
09:06 Debug — MDE: Movie Name (YYYY): media must be transcoded in order to use the hls protocol
09:06 Debug — MDE: Movie Name (YYYY): selected audio stream is not the first audio stream and direct play stream selection is not enabled
09:06 Debug — MDE: Movie Name (YYYY): no direct play video profile exists for http/mkv/hevc
09:06 Debug — MDE: Movie Name (YYYY): no direct play video profile exists for http/mkv/hevc/dca
09:06 Debug — MDE: Movie Name (YYYY): no direct play video profile exists for http/mkv/hevc/ac3
09:06 Debug — MDE: Movie Name (YYYY): no direct play video profile exists for http/mkv/hevc/dca
09:06 Debug — MDE: Movie Name (YYYY): no direct play video profile exists for http/mkv/hevc/ac3
09:06 Debug — Movie Name - video.colorTrc limitation applies: smpte2084 != bt709|bt470m|smpte240m|smpte170m|bt470bg|bt2020-10 [list]
09:06 Debug — MDE: Movie Name (YYYY): no remuxable profile found, so video stream will be transcoded
09:06 Debug — MDE: Cannot direct stream video stream due to profile or setting limitations
09:06 Debug — Codecs: testing hevc (decoder) with hwdevice vaapi
09:06 Debug — Codecs: hardware transcoding: testing API vaapi