5.43.1 update broke DoVi Profile 5 support on LG webOS

Plex Players Smart TVs
3

I can confirm:

Server: v1.27.2.5929 and v1.26.2.5797
Player Version: only on 5.43.1

LG C1 used to support Dolby Vision profile 5 in mp4 containers, but now it tries to transcode and fails.
dovi profile 8 files in mp4 container still play like before.

Here is some more info on the issue:
https://forums.plex.tv/t/playback-error-file-is-unplayable-color-space-is-not-supported

And some log:

videoStream: {
  "id": 163731,
  "streamType": 1,
  "default": true,
  "codec": "hevc",
  "index": 1,
  "bitrate": 24444,
  "DOVIBLCompatID": 0,
  "DOVIBLPresent": true,
  "DOVIELPresent": false,
  "DOVILevel": 6,
  "DOVIPresent": true,
  "DOVIProfile": 5,
  "DOVIRPUPresent": true,
  "DOVIVersion": "1.0",
  "bitDepth": 10,
  "chromaLocation": "left",
  "chromaSubsampling": "4:2:0",
  "codecID": "dvhe",
  "codedHeight": 1608,
  "codedWidth": 3840,
  "colorRange": "tv",
  "frameRate": 23.976,
  "height": 1606,
  "level": 150,
  "profile": "main 10",
  "refFrames": 1,
  "streamIdentifier": "1",
  "width": 3840,
  "displayTitle": "4K DoVi (HEVC Main 10)",
  "extendedDisplayTitle": "4K DoVi (HEVC Main 10)"
}
Failed to create and set current playable media item - File is unplayable. Color space is not supported.
[PlaybackSessionController] we failed to create a playable URL!
Playback error occurred. Reason: FailedToCreatePlayable, Failed to create a playable with the current play queue item! Message: File is unplayable. Color space is not supported.

Jul 27, 2022 23:14:27.182 [14636] DEBUG - [Req#106/Transcode] TranscodeUniversalRequest: adapting profile with augmentation data: add-transcode-target(type=videoProfile&context=streaming&protocol=hls&container=mpegts&videoCodec=h264,hevc,mpeg2video,mpeg4&audioCodec=aac,ac3,eac3,mp2,mp3)+add-limitation(scope=videoAudioCodec&scopeName=mp2&type=upperBound&name=audio.bitrate&value=350)+add-limitation(scope=videoAudioCodec&scopeName=mp3&type=upperBound&name=audio.bitrate&value=350)+add-limitation(scope=videoCodec&scopeName=h264&type=upperBound&name=video.level&value=51)+add-limitation(scope=videoTranscodeTarget&scopeName=h264&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.bitDepth&value=8)+add-limitation(scope=videoTranscodeTarget&scopeName=h264&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.width&value=3840)+add-limitation(scope=videoTranscodeTarget&scopeName=h264&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.height&value=2160)+add-limitation(scope=videoTranscodeTarget&scopeName=hevc&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.bitDepth&value=10)+add-limitation(scope=videoTranscodeTarget&scopeName=hevc&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.width&value=3840)+add-limitation(scope=videoTranscodeTarget&scopeName=hevc&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.height&value=2160)+add-limitation(scope=videoCodec&scopeName=hevc&type=notMatch&name=video.DOVIProfile&value=5)+add-limitation(scope=videoTranscodeTarget&scopeName=mpeg2video&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.bitDepth&value=8)+add-limitation(scope=videoTranscodeTarget&scopeName=mpeg2video&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.width&value=1920)+add-limitation(scope=videoTranscodeTarget&scopeName=mpeg2video&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.height&value=1080)+add-limitation(scope=videoTranscodeTarget&scopeName=mpeg4&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.bitDepth&value=8)+add-limitation(scope=videoTranscodeTarget&scopeName=mpeg4&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.width&value=1920)+add-limitation(scope=videoTranscodeTarget&scopeName=mpeg4&scopeType=videoCodec&context=streaming&protocol=hls&type=upperBound&name=video.height&value=1080)+add-transcode-target(type=subtitleProfile&protocol=http&context=all&subtitleCodec=srt&container=srt)
Jul 27, 2022 23:14:27.183 [14636] DEBUG - [Req#106/Transcode] TranscodeUniversalRequest: using augmented profile Generic