Next episode starts playing before the current ends

[ElFeo]

Found it - ran it without options - let me know if options are needed:

Code:

ffprobe version 6.1-tessus  https://evermeet.cx/ffmpeg/  Copyright (c) 2007-2023 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
Input #0, matroska,webm, from '30.Rock.S02E12.mkv':
  Metadata:
    encoder         : libebml v1.3.6 + libmatroska v1.4.9
    creation_time   : 2024-07-18T16:29:50.000000Z
  Duration: 00:20:31.84, start: 0.000000, bitrate: 5893 kb/s
  Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn (default)
    Metadata:
      BPS-eng         : 5442918
      DURATION-eng    : 00:20:31.840000000
      NUMBER_OF_FRAMES-eng: 30796
      NUMBER_OF_BYTES-eng: 838100619
      _STATISTICS_WRITING_APP-eng: mkvmerge v30.1.0 ('Forever And More') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2024-07-18 16:29:50
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:1(dan): Subtitle: subrip (default)
    Metadata:
      BPS-eng         : 75
      DURATION-eng    : 00:19:58.925000000
      NUMBER_OF_FRAMES-eng: 237
      NUMBER_OF_BYTES-eng: 11326
      _STATISTICS_WRITING_APP-eng: mkvmerge v30.1.0 ('Forever And More') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2024-07-18 16:29:50
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:2(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s (default)
    Metadata:
      BPS-eng         : 448000
      DURATION-eng    : 00:20:31.808000000
      NUMBER_OF_FRAMES-eng: 38494
      NUMBER_OF_BYTES-eng: 68981248
      _STATISTICS_WRITING_APP-eng: mkvmerge v30.1.0 ('Forever And More') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2024-07-18 16:29:50
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:3(fin): Subtitle: subrip
    Metadata:
      BPS-eng         : 84
      DURATION-eng    : 00:19:49.852000000
      NUMBER_OF_FRAMES-eng: 265
      NUMBER_OF_BYTES-eng: 12521
      _STATISTICS_WRITING_APP-eng: mkvmerge v30.1.0 ('Forever And More') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2024-07-18 16:29:50
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:4(nor): Subtitle: subrip
    Metadata:
      BPS-eng         : 75
      DURATION-eng    : 00:20:21.021000000
      NUMBER_OF_FRAMES-eng: 243
      NUMBER_OF_BYTES-eng: 11518
      _STATISTICS_WRITING_APP-eng: mkvmerge v30.1.0 ('Forever And More') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2024-07-18 16:29:50
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:5(swe): Subtitle: subrip
    Metadata:
      BPS-eng         : 79
      DURATION-eng    : 00:19:48.328000000
      NUMBER_OF_FRAMES-eng: 236
      NUMBER_OF_BYTES-eng: 11873
      _STATISTICS_WRITING_APP-eng: mkvmerge v30.1.0 ('Forever And More') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2024-07-18 16:29:50
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES

[TheDreadPirate]

Did ffprobe not print the chapters?

[ElFeo]

This is the output I got from ffprobe file.mkv (one of the problematic episodes). I'm running on mac.

Sorry, I double checked and there are some rows before the ones I posted. Edited my previous post

[TheDreadPirate]

Huh. Still no chapters. Weird. So it isn't outro skipping misfiring.

This leads me to believe that the files are just bad somehow. If they are all from the same source, that would explain why this affects more than one file.