Server Version#: plexmediaserver-0:1.43.0.10492-121068a07.x86_64
Player Version#: Unknown, I’m not the one playing the file, I just noticed the error on my server.
I’m running Fedora release 42 (Adams), kernel 6.19.8-100.fc42.x86_64 on a HP Microserver Gen8 with Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz and an Intel Corporation DG2 [Arc A310] (rev 05) with Hardware Transcoding enabled in Plex
This is what I get in my kernel logs since upgrading to latest plexmediaserver:
[root@gen8 ~]# grep 'Mar 25 20:17:15' /var/log/messages
Mar 25 20:17:15 gen8 audit[38879]: ANOM_ABEND auid=4294967295 uid=500 gid=1001 ses=4294967295 pid=38879 comm="mux0:segment" exe=2F7573722F6C69622F706C65786D656469617365727665722F506C6578205472616E73636F646572 sig=11 res=1
Mar 25 20:17:15 gen8 kernel: mux0:segment[38881]: segfault at 54 ip 00007f7158b96f5c sp 00007f71556c55d0 error 4 in libavformat.so.60[195f5c,7f7158ad0000+208000] likely on CPU 1 (core 1, socket 0)
Mar 25 20:17:15 gen8 kernel: Code: 44 24 10 45 31 ed eb 22 48 83 c3 1c 48 8b 47 18 4c 8b af c8 00 00 00 4c 39 e8 44 0f 47 e8 44 2b 6f 08 49 89 ff 48 89 5c 24 10 <8b> 47 54 89 44 24 0c 85 c0 0f 88 1d 01 00 00 83 7c 24 60 00 74 3b
Mar 25 20:17:15 gen8 systemd-coredump[38883]: Process 38879 (Plex Transcoder) of user 500 terminated abnormally with signal 11/SEGV, processing...
Mar 25 20:17:15 gen8 audit: BPF prog-id=136 op=LOAD
Mar 25 20:17:15 gen8 audit: BPF prog-id=137 op=LOAD
Mar 25 20:17:15 gen8 audit: BPF prog-id=138 op=LOAD
Mar 25 20:17:15 gen8 systemd[1]: Started systemd-coredump@2-38883-0.service - Process Core Dump (PID 38883/UID 0).
Mar 25 20:17:15 gen8 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@2-38883-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
FWIW, SELinux is disabled:
[root@gen8 ~]# getenforce
Disabled
In that minute, I have the following in my Plex Media Server log:
Mar 25, 2026 20:17:02.056 [139942563687224] ERROR - [TranscodeOutputStream] Session appears to have died from under us
Mar 25, 2026 20:17:15.359 [139942563687224] ERROR - [Req#163c/Transcode] ClientProfileExtra: missing container parameter
Mar 25, 2026 20:17:15.359 [139942563687224] WARN - [Req#163c/Transcode] ClientProfileExtra: ignoring directive: add-direct-play-profile(type=subtitleProfile&context=all&protocol=http&subtitleContainer=webvtt&subtitleCodec=webvtt)
Mar 25, 2026 20:17:15.360 [139942563687224] WARN - [Req#163c/Transcode] TranscodeUniversalRequest: at least one profile extra directive could not be read
Mar 25, 2026 20:17:15.723 [139942563687224] ERROR - [Req#162e/Transcode] ClientProfileExtra: missing container parameter
Mar 25, 2026 20:17:15.723 [139942563687224] WARN - [Req#162e/Transcode] ClientProfileExtra: ignoring directive: add-direct-play-profile(type=subtitleProfile&context=all&protocol=http&subtitleContainer=webvtt&subtitleCodec=webvtt)
Mar 25, 2026 20:17:15.723 [139942563687224] WARN - [Req#162e/Transcode] TranscodeUniversalRequest: at least one profile extra directive could not be read
Mar 25, 2026 20:17:15.822 [139942577535800] ERROR - [Req#164c/Transcode/vn443hlzwzdor3l5t9t1b7jx/db31e630-3650-44bc-aa5a-fb0f08a1f9c9] [matroska @ 0x7f714be7c2c0] Error parsing AAC extradata, unable to determine samplerate.
Mar 25, 2026 20:17:20.825 [139942563687224] ERROR - [TranscodeOutputStream] Session appears to have died from under us
The full session log looks like this:
Mar 25, 2026 20:13:47.762 [139942563687224] WARN - [Req#1432] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
Mar 25, 2026 20:13:47.762 [139942563687224] WARN - [Req#1432] QueryParser: Invalid field 'pinnedContentDirectoryID' found, ignoring.
Mar 25, 2026 20:13:47.868 [139942563687224] WARN - [Req#1432] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
Mar 25, 2026 20:13:47.868 [139942563687224] WARN - [Req#1432] QueryParser: Invalid field 'pinnedContentDirectoryID' found, ignoring.
Mar 25, 2026 20:16:19.897 [139942563687224] ERROR - [Req#15d7/Transcode] ClientProfileExtra: missing container parameter
Mar 25, 2026 20:16:19.897 [139942563687224] WARN - [Req#15d7/Transcode] ClientProfileExtra: ignoring directive: add-direct-play-profile(type=subtitleProfile&context=all&protocol=http&subtitleContainer=webvtt&subtitleCodec=webvtt)
Mar 25, 2026 20:16:19.897 [139942563687224] WARN - [Req#15d7/Transcode] TranscodeUniversalRequest: at least one profile extra directive could not be read
Mar 25, 2026 20:16:20.835 [139942563687224] ERROR - [Req#15ea/Transcode/vn443hlzwzdor3l5t9t1b7jx/1b650439-9951-48ee-8cf7-b24df1cec953] [matroska @ 0x7f3e672692c0] Error parsing AAC extradata, unable to determine samplerate.
Mar 25, 2026 20:16:56.594 [139942563687224] ERROR - [Req#1611/Transcode] ClientProfileExtra: missing container parameter
Mar 25, 2026 20:16:56.594 [139942563687224] WARN - [Req#1611/Transcode] ClientProfileExtra: ignoring directive: add-direct-play-profile(type=subtitleProfile&context=all&protocol=http&subtitleContainer=webvtt&subtitleCodec=webvtt)
Mar 25, 2026 20:16:56.594 [139942563687224] WARN - [Req#1611/Transcode] TranscodeUniversalRequest: at least one profile extra directive could not be read
Mar 25, 2026 20:16:56.953 [139942563687224] ERROR - [Req#160e/Transcode] ClientProfileExtra: missing container parameter
Mar 25, 2026 20:16:56.953 [139942563687224] WARN - [Req#160e/Transcode] ClientProfileExtra: ignoring directive: add-direct-play-profile(type=subtitleProfile&context=all&protocol=http&subtitleContainer=webvtt&subtitleCodec=webvtt)
Mar 25, 2026 20:16:56.954 [139942563687224] WARN - [Req#160e/Transcode] TranscodeUniversalRequest: at least one profile extra directive could not be read
Mar 25, 2026 20:17:02.056 [139942563687224] ERROR - [TranscodeOutputStream] Session appears to have died from under us
Mar 25, 2026 20:17:15.359 [139942563687224] ERROR - [Req#163c/Transcode] ClientProfileExtra: missing container parameter
Mar 25, 2026 20:17:15.359 [139942563687224] WARN - [Req#163c/Transcode] ClientProfileExtra: ignoring directive: add-direct-play-profile(type=subtitleProfile&context=all&protocol=http&subtitleContainer=webvtt&subtitleCodec=webvtt)
Mar 25, 2026 20:17:15.360 [139942563687224] WARN - [Req#163c/Transcode] TranscodeUniversalRequest: at least one profile extra directive could not be read
Mar 25, 2026 20:17:15.723 [139942563687224] ERROR - [Req#162e/Transcode] ClientProfileExtra: missing container parameter
Mar 25, 2026 20:17:15.723 [139942563687224] WARN - [Req#162e/Transcode] ClientProfileExtra: ignoring directive: add-direct-play-profile(type=subtitleProfile&context=all&protocol=http&subtitleContainer=webvtt&subtitleCodec=webvtt)
Mar 25, 2026 20:17:15.723 [139942563687224] WARN - [Req#162e/Transcode] TranscodeUniversalRequest: at least one profile extra directive could not be read
Mar 25, 2026 20:17:20.825 [139942563687224] ERROR - [TranscodeOutputStream] Session appears to have died from under us
