Mp4 video frames stutter after conversion from mkv in Hybrid

[lostsnowboardvideos]

Not sure why I'm having issues attaching files directly to this board but here's another Vimeo link to the original chapter from the MKV that was tested. Used mkvtoolnix to clip it.

Also included the ffprobe text file.

Last login: Tue Jul  9 12:17:42 on ttys000
richmadrid@Richs-MacBook-Air ~ % cd downloads
richmadrid@Richs-MacBook-Air downloads % ffprobe -i b1_t00.mkv
ffprobe version 7.0.1 Copyright (c) 2007-2024 the FFmpeg developers
  built with Apple clang version 15.0.0 (clang-1500.1.0.2.5)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/7.0.1 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox
  libavutil      59.  8.100 / 59.  8.100
  libavcodec     61.  3.100 / 61.  3.100
  libavformat    61.  1.100 / 61.  1.100
  libavdevice    61.  1.100 / 61.  1.100
  libavfilter    10.  1.100 / 10.  1.100
  libswscale      8.  1.100 /  8.  1.100
  libswresample   5.  1.100 /  5.  1.100
  libpostproc    58.  1.100 / 58.  1.100
Input #0, matroska,webm, from 'b1_t00.mkv':
  Metadata:
    encoder         : libmakemkv v1.17.7 (1.3.10/1.5.2) win(x64-release)
    creation_time   : 2024-07-10T03:35:24.000000Z
  Duration: 00:41:20.64, start: 0.000000, bitrate: 7389 kb/s
  Chapters:
    Chapter #0:0: start 0.000000, end 169.369200
      Metadata:
        title           : Chapter 01
    Chapter #0:1: start 169.369200, end 354.554200
      Metadata:
        title           : Chapter 02
    Chapter #0:2: start 354.554200, end 509.308800
      Metadata:
        title           : Chapter 03
    Chapter #0:3: start 509.308800, end 619.819200
      Metadata:
        title           : Chapter 04
    Chapter #0:4: start 619.819200, end 697.496800
      Metadata:
        title           : Chapter 05
    Chapter #0:5: start 697.496800, end 804.403600
      Metadata:
        title           : Chapter 06
    Chapter #0:6: start 804.403600, end 944.143200
      Metadata:
        title           : Chapter 07
    Chapter #0:7: start 944.143200, end 1059.458400
      Metadata:
        title           : Chapter 08
    Chapter #0:8: start 1059.458400, end 1167.766600
      Metadata:
        title           : Chapter 09
    Chapter #0:9: start 1167.766600, end 1319.117800
      Metadata:
        title           : Chapter 10
    Chapter #0:10: start 1319.117800, end 1428.226800
      Metadata:
        title           : Chapter 11
    Chapter #0:11: start 1428.226800, end 1512.911400
      Metadata:
        title           : Chapter 12
    Chapter #0:12: start 1512.911400, end 1595.594000
      Metadata:
        title           : Chapter 13
    Chapter #0:13: start 1595.594000, end 1648.046400
      Metadata:
        title           : Chapter 14
    Chapter #0:14: start 1648.046400, end 1807.405600
      Metadata:
        title           : Chapter 15
    Chapter #0:15: start 1807.405600, end 1914.913000
      Metadata:
        title           : Chapter 16
    Chapter #0:16: start 1914.913000, end 2010.808800
      Metadata:
        title           : Chapter 17
    Chapter #0:17: start 2010.808800, end 2217.615400
      Metadata:
        title           : Chapter 18
    Chapter #0:18: start 2217.615400, end 2480.644833
      Metadata:
        title           : Chapter 19
  Stream #0:0(eng): Video: mpeg2video (Main), yuv420p(tv, bottom first), 704x480 [SAR 10:11 DAR 4:3], 7000 kb/s, 29.97 fps, 29.97 tbr, 1k tbn
      Metadata:
        BPS-eng         : 6999957
        DURATION-eng    : 00:41:20.644833333
        NUMBER_OF_FRAMES-eng: 74345
        NUMBER_OF_BYTES-eng: 2170550421
        SOURCE_ID-eng   : 0100E0
        _STATISTICS_WRITING_APP-eng: MakeMKV v1.17.7 win(x64-release)
        _STATISTICS_WRITING_DATE_UTC-eng: 2024-07-10 03:35:24
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID
      Side data:
        cpb: bitrate max/min/avg: 7000000/0/0 buffer size: 1835008 vbv_delay: N/A
  Stream #0:1(eng): Audio: ac3, 48000 Hz, stereo, fltp, 384 kb/s (default)
      Metadata:
        title           : Stereo
        BPS-eng         : 384000
        DURATION-eng    : 00:41:20.672000000
        NUMBER_OF_FRAMES-eng: 77521
        NUMBER_OF_BYTES-eng: 119072256
        SOURCE_ID-eng   : 0180BD
        _STATISTICS_WRITING_APP-eng: MakeMKV v1.17.7 win(x64-release)
        _STATISTICS_WRITING_DATE_UTC-eng: 2024-07-10 03:35:24
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES SOURCE_ID