Intermittent "An Unexpected playback problem" on LG G1

Server Version#: 1.23.6.4810
Player Version#: 5.20.1
Platform Version#: 6.1.0

I seem to be getting intermittent An unexpected playback problem has occurred on my LG G1 webOS app. These errors are completely intermittent. As soon as I back out and try playing the exact same media, it works perfectly. It happens when I initiate playback, and after I retry and finish the episode and move to the next one, it will usually happen again. It does not happen every time, and I cannot figure out how to consistenly reproduce it. It’s mostly just annoying. I have not noticed it on other platforms, though I do not watch enough on anything other than webOS to verify that it only occurs on that version. Debug logs from the client below.

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted] Navigating to screen: VisualMediaPlaybackScreen

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted] [PlaybackMetrics] Attaching playback metrics to PlayerController

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted] [PlaybackSessionController] playback state changed to: stopped

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted] [SubtitleConnectionManager] Subtitle connection ignored. App is not rendering subtitles.

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted] [ServerConnectionTestManager] Stopped

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted] Navigated to screen: VisualMediaPlaybackScreen

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] WARN - [Plex for LG] [redacted] _onOnPlayPauseInvokedChanged is not defined for @autoCallback property: onPlayPauseInvoked

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted] [MDE] Application decision, directPlay: false, directStreamVideo: false, directStreamAudio: false

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     Cannot direct play with protocol: http, codec: truehd.  Not found in profile.

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     Cannot direct stream with protocol: hls, codec: truehd.  Not found in profile.

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     Cannot direct play or stream. Server does not support transcoding subtitle codec pgs

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted]   videoStream: {

  "id": 1296393,

  "streamType": 1,

  "default": true,

  "codec": "hevc",

  "index": 0,

  "bitrate": 7026,

  "language": "English",

  "languageCode": "eng",

  "bitDepth": 10,

  "chromaSubsampling": "4:2:0",

  "codedHeight": 1080,

  "codedWidth": 1920,

  "colorPrimaries": "bt709",

  "colorRange": "tv",

  "colorSpace": "bt709",

  "colorTrc": "bt709",

  "frameRate": 23.97599983215332,

  "height": 1080,

  "level": 150,

  "profile": "main 10",

  "refFrames": 1,

  "width": 1920,

  "displayTitle": "1080p (HEVC Main 10)",

  "extendedDisplayTitle": "1080p (HEVC Main 10)"

}

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted]   audioStream: {

  "id": 1296394,

  "streamType": 2,

  "selected": true,

  "default": true,

  "codec": "truehd",

  "index": 1,

  "channels": 6,

  "language": "English",

  "languageCode": "eng",

  "audioChannelLayout": "5.1(side)",

  "bitDepth": 24,

  "samplingRate": 48000,

  "displayTitle": "English (TRUEHD 5.1)",

  "extendedDisplayTitle": "English (TRUEHD 5.1)"

}

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted]   subtitleStream: {

  "id": 1296396,

  "streamType": 3,

  "selected": true,

  "default": true,

  "codec": "pgs",

  "index": 3,

  "language": "English",

  "languageCode": "eng",

  "headerCompression": true,

  "title": "Signs / Songs",

  "displayTitle": "English (PGS)",

  "extendedDisplayTitle": "Signs / Songs (English PGS)"

}

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted] Cannot direct play subtitles. Reason: Server required to burn subtitles

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted] [MDE] Server decision, directPlay: false, directStreamVideo: false, directStreamAudio: false

Jul 21, 2021 22:34:00.101 [0x799ce5029b38] INFO - [Plex for LG] [redacted]   reason: App cannot direct play this item. Direct play is disabled.

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]   videoStream: {

  "bitrate": "8859",

  "codec": "h264",

  "colorPrimaries": "bt709",

  "default": "1",

  "displayTitle": "1080p (HEVC Main 10)",

  "extendedDisplayTitle": "1080p (HEVC Main 10)",

  "frameRate": 23.976,

  "height": "1080",

  "id": "1296393",

  "language": "English",

  "languageCode": "eng",

  "streamType": 1,

  "width": "1920",

  "decision": "transcode",

  "location": "segments-av"

}

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]   audioStream: {

  "bitrate": "375",

  "bitrateMode": "cbr",

  "channels": 6,

  "codec": "aac",

  "default": "1",

  "displayTitle": "English (TRUEHD 5.1)",

  "extendedDisplayTitle": "English (TRUEHD 5.1)",

  "id": "1296394",

  "language": "English",

  "languageCode": "eng",

  "selected": "1",

  "streamType": 2,

  "decision": "transcode",

  "location": "segments-av"

}

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]   subtitleStream: {

  "burn": "1",

  "default": "1",

  "displayTitle": "English (PGS)",

  "extendedDisplayTitle": "Signs / Songs (English PGS)",

  "id": "1296396",

  "language": "English",

  "languageCode": "eng",

  "selected": "1",

  "streamType": 3,

  "decision": "burn",

  "location": "segments-av"

}

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]   augmentations with profile: Generic

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-transcode-target streaming videoProfile hls mpegts h264,hevc,mpeg2video,mpeg4 aac,ac3,eac3,mp2,mp3

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation videoAudioCodec mp2 upperBound audio.bitrate 350

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation videoAudioCodec mp3 upperBound audio.bitrate 350

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation videoCodec h264 upperBound video.level 51

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget h264 hls upperBound video.bitDepth 8

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget h264 hls upperBound video.width 3840

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget h264 hls upperBound video.height 2160

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget hevc hls upperBound video.bitDepth 10

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget hevc hls upperBound video.width 3840

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget hevc hls upperBound video.height 2160

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget mpeg2video hls upperBound video.bitDepth 8

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget mpeg2video hls upperBound video.width 1920

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget mpeg2video hls upperBound video.height 1080

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget mpeg4 hls upperBound video.bitDepth 8

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget mpeg4 hls upperBound video.width 1920

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-limitation streaming videoTranscodeTarget mpeg4 hls upperBound video.height 1080

Jul 21, 2021 22:34:00.102 [0x799ce5029b38] INFO - [Plex for LG] [redacted]     add-transcode-target all subtitleProfile http pgs

Jul 21, 2021 22:34:00.103 [0x799ce482bb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.106 [0x799ce625fb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.112 [0x799ce5029b38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.117 [0x799ce482bb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.128 [0x799ce625fb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.128 [0x799ce5029b38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.133 [0x799ce482bb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.136 [0x799ce625fb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.141 [0x799ce5029b38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.142 [0x799ce482bb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.154 [0x799ce625fb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.172 [0x799ce5029b38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.220 [0x799ce482bb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.227 [0x799ce625fb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.228 [0x799ce5029b38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.229 [0x799ce482bb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.229 [0x799ce625fb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:00.262 [0x799ce6452b38] ERROR - Error issuing curl_easy_perform(handle): 7

Jul 21, 2021 22:34:00.277 [0x799ce625fb38] ERROR - Missing required query parameter level

Jul 21, 2021 22:34:05.211 [0x799ce5029b38] INFO - [Plex for LG] [redacted] [SubtitleConnectionManager] Subtitle connection ignored. App is not rendering subtitles.

Jul 21, 2021 22:34:05.211 [0x799ce5029b38] INFO - [Plex for LG] [redacted] [PlaybackSessionController] playback state changed to: buffering

Jul 21, 2021 22:34:06.617 [0x799ce637db38] ERROR - Error issuing curl_easy_perform(handle): 7

Jul 21, 2021 22:34:06.617 [0x799ce6452b38] ERROR - Error issuing curl_easy_perform(handle): 7

Jul 21, 2021 22:34:06.617 [0x799ce6128b38] ERROR - Error issuing curl_easy_perform(handle): 7

Jul 21, 2021 22:34:06.617 [0x799ce63a0b38] ERROR - Error issuing curl_easy_perform(handle): 7

Jul 21, 2021 22:34:11.047 [0x799ce482bb38] WARN - [Plex for LG] [redacted] [Player] A critical HTML media error occurred: 4 (MEDIA_ELEMENT_ERROR: Format error); the player cannot recover

Jul 21, 2021 22:34:11.047 [0x799ce482bb38] INFO - [Plex for LG] [redacted] [PlaybackSessionController] playback state changed to: stopped

Jul 21, 2021 22:34:11.047 [0x799ce482bb38] ERROR - [Plex for LG] [redacted] Playback error occurred. Reason: Unknown, An unknown player error occurred. code: 4, message: MEDIA_ELEMENT_ERROR: Format error

Jul 21, 2021 22:34:11.047 [0x799ce482bb38] WARN - [Plex for LG] [redacted] [PlaybackSessionController] could not retry, reporting error

Jul 21, 2021 22:34:11.047 [0x799ce482bb38] INFO - [Plex for LG] [redacted] Opening modal: ActionsModal

Jul 21, 2021 22:34:11.047 [0x799ce482bb38] INFO - [Plex for LG] [redacted] Opened modal: ActionsModal

Jul 21, 2021 22:34:11.047 [0x799ce482bb38] INFO - [Plex for LG] [redacted] Navigation: Closing screen: VisualMediaPlaybackScreen

Jul 21, 2021 22:34:11.047 [0x799ce482bb38] INFO - [Plex for LG] [redacted] goBack on screen: VisualMediaPlaybackScreen

Jul 21, 2021 22:34:11.047 [0x799ce482bb38] INFO - [Plex for LG] [redacted] Navigating back to screen: ShowTabbedScreen

I’m getting the same error message on an LG nano 85.
Server: 1.23.5.4841
Client: 5.20.1
Platform: 5.2.3

EDIT: I’m no longer receiving this error with Server # 1.23.5.4862

Im getting the same errors on my Samsung Q95 TV:
Server: 1.23.6.4881-6000 (installed manually on Synology NAS)
Client: 5.20.1
Platform: 5.5

All movies appear to play correctly on my Android phone, but not on the Samsung TV.

I have tried deleting the TV Plex APP and reinstalling … still no luck.

Any ideas out there?

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