Issue with 1080p HEVC (stutters, freeze, black screen)

Hello

I have alot of files in 1080p HEVC and they are not working on the Vero 4K

Mediainfo:
http://paste.osmc.io/ucawadunuh.mel

Playback starts, only sound, no picture (all black)… after some seconds there is picture, then stutters, freeze, no picture for seconds, picture, stutters freeze… and so on

Those fiiles play just fine on the shield tv with Kodi 17.4 and PC.

My settings in Kodi for the Vero 4k are very standard, I doubt it has something to do with them.

Thanks in advance,

Nick

edit: here is the debug log: http://paste.osmc.tv/bibigahoke … and local playback didn´t help, so no network issue

edit2: I think what you want to see is timestamp Sep 13 17:35:05 and forward… I uploaded a huge log, but at that timestamp I had debug on and started the file

Hi Nick,

We need a debug log, to work out whats going on here:

https://osmc.tv/wiki/general/how-to-submit-a-useful-support-request

Also are these being back locally or from a network device i.e nas?

Thanks Tom.

They are coming from a NAS. Now that you mentioned it, the Vero acts like it is stuttering like it has problems buffering, but everything else works just fine including files with much much much higher bitrate.

I will try to figure out about the debug log.

II can confirm it is not a network issue because it is the same with local playback via USB.

It looks like the stream is stalling. I see you tried USB playback with no difference which is odd.

Can you show audio settings + describe the audio setup?
Do you have this problem with other clips?

Sam

I have dozens of the files from the same encoder. They all have that issue and like II mentioned, they play fine in Kodi 17.4 on a different device (shield tv).

Audio is playing even during black screen… but will freeze also temporary, but audio “uptime” is about 90%…while video is never really there, just displaying some frames and immediately freeze… and then vanish back into black screen just to reappear 5 seconds later for just some frames etc… using software decoding by turning of the amlogic hardware acceleration kind of works but the Vero is not fast enough to produce constant frame rates with hevc software decoding it seems.

Audio Setup:
5.0 speakers on a Yamaha RX679 AV receiver (no other issues)

Audio settings in Kodi:

  • audio output device: hdmi
  • PT: everything enabled… nothing changes regarding that file if I disable PT

and yes, USB playback doesn´t change anything… I have no issue with anything else, 4k/hdr hevc works just fine…

Let’s try and get on the same page first.

This test clip is a 2160P HEVC video. If that works OK, then I don’t think you have a general problem with HW accelerated playback.

Can you send me a sample or magnet? I will see if there is something unique to these files.

Sam

4k hevc works just fine… watched a movie just yesterday at 2160p hevc 10bit and it was awesome… and it still works, so no problem with hardware acceleration.

I have no sample, the smallest file would be 1.3gb, will take some time to upload it (1h, my upload sucks), I will pm you when it is done

Thanks. I’ll see what I can find out from the clip

Sam

I upload it tomorrow, it faiiled to upload multiple times… I´ll pm you

ok I figured out to make a sample of 45mb, I pm you the link

edit: pm sent

did you have any conclusions on the test file ?

I haven’t had a chance to check it yet.

Sam

Something seems to be wrong with the file.

If you find the problem with other files let me know. There are another round of video improvements coming in, but I’m not sure it will resolve the playback issue here.

Sam

ok, thx for looking into it.

I’m having exactly the same problem with one anime series I have… I hoped the december update would solve this problem, but that didn’t help…
And beside the symptoms described in this thread I also have a few other 1080p series, also encoded in HEVC 10bit, which just plain don’t work on the Vero4K. When one of those videos are started Kodi does display a play icon and a little progress bar indicating that it is playing the file, but full screen playback is not started; the file-selection screen just keeps displayed as if I was trying to play a music file. Also the progress bar does not advance much and when I switch to full-screen playback the screen just turns black (with controls). Kodi does indicate that the files are played using hardware decoding.
On a normal PC all those files are played without problem (sofware decoding)…

What info should I provide to examine this problem ?

Here are some properties of a file which has the exact symptoms as described earlier in this thread (audio but black/slow/stuttering video):

Input #0, matroska,webm, from 'Nanatsu no Taizai - 01 - The Seven Deadly Sins (SUB)[AnimeRG](8E5F922A).mkv':
  Metadata:
    encoder         : libebml v1.3.3 + libmatroska v1.4.4
    creation_time   : 2016-07-20 22:55:52
  Duration: 00:24:29.91, start: 0.000000, bitrate: 1876 kb/s
    Chapter #0:0: start 0.000000, end 152.944000
    Metadata:
      title           : Intro
    Chapter #0:1: start 152.944000, end 697.113000
    Metadata:
      title           : Part A
    Chapter #0:2: start 697.113000, end 1214.839000
    Metadata:
      title           : Part B
    Chapter #0:3: start 1214.839000, end 1304.929000
    Metadata:
      title           : Opening
    Chapter #0:4: start 1304.929000, end 1436.977000
    Metadata:
      title           : Epilogue
    Chapter #0:5: start 1436.977000, end 1437.019000
    Metadata:
      title           : Next Episode's Report!
    Chapter #0:6: start 1437.019000, end 1469.910000
    Metadata:
      title           : Chapter 05
    Stream #0:0: Video: hevc (Main), yuv420p(tv), 1920x1072 [SAR 1:1 DAR 120:67], 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc (default)
    Metadata:
      BPS             : 1618334
      BPS-eng         : 1618334
      DURATION        : 00:24:29.135000000
      DURATION-eng    : 00:24:29.135000000
      NUMBER_OF_FRAMES: 35224
      NUMBER_OF_FRAMES-eng: 35224
      NUMBER_OF_BYTES : 297193983
      NUMBER_OF_BYTES-eng: 297193983
      _STATISTICS_WRITING_APP: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2016-07-20 22:55:52
      _STATISTICS_WRITING_DATE_UTC-eng: 2016-07-20 22:55:52
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(eng): Audio: aac (LC), 48000 Hz, stereo, fltp (default)
    Metadata:
      title           : English Stereo
      BPS             : 95102
      BPS-eng         : 95102
      DURATION        : 00:24:28.607000000
      DURATION-eng    : 00:24:28.607000000
      NUMBER_OF_FRAMES: 68841
      NUMBER_OF_FRAMES-eng: 68841
      NUMBER_OF_BYTES : 17458503
      NUMBER_OF_BYTES-eng: 17458503
      _STATISTICS_WRITING_APP: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2016-07-20 22:55:52
      _STATISTICS_WRITING_DATE_UTC-eng: 2016-07-20 22:55:52
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:2(jpn): Audio: aac (LC), 48000 Hz, stereo, fltp
    Metadata:
      title           : Japanese Stereo
      BPS             : 100512
      BPS-eng         : 100512
      DURATION        : 00:24:29.119000000
      DURATION-eng    : 00:24:29.119000000
      NUMBER_OF_FRAMES: 68865
      NUMBER_OF_FRAMES-eng: 68865
      NUMBER_OF_BYTES : 18458051
      NUMBER_OF_BYTES-eng: 18458051
      _STATISTICS_WRITING_APP: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2016-07-20 22:55:52
      _STATISTICS_WRITING_DATE_UTC-eng: 2016-07-20 22:55:52
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:3(eng): Subtitle: ass (default)
    Metadata:
      title           : English (Signs / Songs)
      BPS             : 355
      BPS-eng         : 355
      DURATION        : 00:24:27.250000000
      DURATION-eng    : 00:24:27.250000000
      NUMBER_OF_FRAMES: 517
      NUMBER_OF_FRAMES-eng: 517
      NUMBER_OF_BYTES : 65220
      NUMBER_OF_BYTES-eng: 65220
      _STATISTICS_WRITING_APP: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2016-07-20 22:55:52
      _STATISTICS_WRITING_DATE_UTC-eng: 2016-07-20 22:55:52
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:4(eng): Subtitle: ass
    Metadata:
      title           : English (Full)
      BPS             : 472
      BPS-eng         : 472
      DURATION        : 00:24:27.250000000
      DURATION-eng    : 00:24:27.250000000
      NUMBER_OF_FRAMES: 905
      NUMBER_OF_FRAMES-eng: 905
      NUMBER_OF_BYTES : 86735
      NUMBER_OF_BYTES-eng: 86735
      _STATISTICS_WRITING_APP: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v9.2.0 ('Photograph') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2016-07-20 22:55:52
      _STATISTICS_WRITING_DATE_UTC-eng: 2016-07-20 22:55:52
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:5: Attachment: ttf
    Metadata:
      filename        : A little sunshine.ttf
      mimetype        : application/x-truetype-font
    Stream #0:6: Attachment: ttf
    Metadata:
      filename        : Ad Hoc Bis.ttf
      mimetype        : application/x-truetype-font
    Stream #0:7: Attachment: ttf
    Metadata:
      filename        : Amaranth-Italic.ttf
      mimetype        : application/x-truetype-font
    Stream #0:8: Attachment: ttf
    Metadata:
      filename        : Amaranth-Regular.ttf
      mimetype        : application/x-truetype-font
    Stream #0:9: Attachment: ttf
    Metadata:
      filename        : Animated.ttf
      mimetype        : application/x-truetype-font
    Stream #0:10: Attachment: ttf
    Metadata:
      filename        : blzee.ttf
      mimetype        : application/x-truetype-font
   Stream #0:11: Attachment: ttf
    Metadata:
      filename        : CAC Moose_1.ttf
      mimetype        : application/x-truetype-font
    Stream #0:12: Attachment: ttf
    Metadata:
      filename        : CFJackStory-Regular.ttf
      mimetype        : application/x-truetype-font
    Stream #0:13: Attachment: otf
    Metadata:
      filename        : CostaPtf-Demi.otf
      mimetype        : application/vnd.ms-opentype
    Stream #0:14: Attachment: ttf
    Metadata:
      filename        : DADHAND_0.TTF
      mimetype        : application/x-truetype-font
    Stream #0:15: Attachment: ttf
    Metadata:
      filename        : DFKKS9.TTC
      mimetype        : application/x-truetype-font
    Stream #0:16: Attachment: ttf
    Metadata:
      filename        : Eager_Naturalist.ttf
      mimetype        : application/x-truetype-font
    Stream #0:17: Attachment: ttf
    Metadata:
      filename        : EpicSlash.ttf
      mimetype        : application/x-truetype-font
    Stream #0:18: Attachment: ttf
    Metadata:
      filename        : Fondamento-Regular_2.ttf
      mimetype        : application/x-truetype-font
    Stream #0:19: Attachment: ttf
    Metadata:
      filename        : Footlight MT Light.ttf
      mimetype        : application/x-truetype-font
    Stream #0:20: Attachment: ttf
    Metadata:
      filename        : FTLTLT.TTF
      mimetype        : application/x-truetype-font
    Stream #0:21: Attachment: ttf
    Metadata:
      filename        : GenBkBasB_1.ttf
      mimetype        : application/x-truetype-font
    Stream #0:22: Attachment: ttf
    Metadata:
      filename        : GenBkBasR.ttf
      mimetype        : application/x-truetype-font
    Stream #0:23: Attachment: ttf
    Metadata:
      filename        : georgia.ttf
      mimetype        : application/x-truetype-font
    Stream #0:24: Attachment: ttf
    Metadata:
      filename        : Gilgamesh Bold_0.ttf
      mimetype        : application/x-truetype-font
    Stream #0:25: Attachment: ttf
    Metadata:
      filename        : HaleysHand-Regular_0.ttf
      mimetype        : application/x-truetype-font
    Stream #0:26: Attachment: ttf
    Metadata:
      filename        : IwaOMinPro-Bd-Fate_0.ttf
      mimetype        : application/x-truetype-font
    Stream #0:27: Attachment: ttf
    Metadata:
      filename        : jagb___.ttf
      mimetype        : application/x-truetype-font
    Stream #0:28: Attachment: ttf
    Metadata:
      filename        : JandaCloserToFree-Regular.ttf
      mimetype        : application/x-truetype-font
    Stream #0:29: Attachment: ttf
    Metadata:
      filename        : lastninja.ttf
      mimetype        : application/x-truetype-font
    Stream #0:30: Attachment: ttf
    Metadata:
      filename        : PatuaOne-Regular.ttf
      mimetype        : application/x-truetype-font
    Stream #0:31: Attachment: ttf
    Metadata:
      filename        : tahomabd.ttf
      mimetype        : application/x-truetype-font
    Stream #0:32: Attachment: ttf
    Metadata:
      filename        : times.ttf
      mimetype        : application/x-truetype-font
    Stream #0:33: Attachment: ttf
    Metadata:
      filename        : trado.ttf
      mimetype        : application/x-truetype-font
    Stream #0:34: Attachment: ttf
    Metadata:
      filename        : TT1025M.TTF
      mimetype        : application/x-truetype-font
    Stream #0:35: Attachment: otf
    Metadata:
      filename        : Zantroke.otf
      mimetype        : application/vnd.ms-opentype

These are the properties of one of those files in the latter case I described (no audio, no video display):

Input #0, matroska,webm, from 'Kizumonogatari - 3 - Cold-Blooded Arc (SUB)[AnimeKaizoku](%CRC).mkv':
  Metadata:
    ENCODER         : Lavf57.72.101
  Duration: 01:22:10.94, start: 0.000000, bitrate: 1351 kb/s
    Chapter #0:0: start 0.000000, end 452.160000
    Metadata:
      title           : Chapter 1
    Chapter #0:1: start 452.160000, end 1288.454000
    Metadata:
      title           : Chapter 2
    Chapter #0:2: start 1288.454000, end 2149.230000
    Metadata:
      title           : Chapter 3
    Chapter #0:3: start 2149.230000, end 2734.023000
    Metadata:
      title           : Chapter 4
    Chapter #0:4: start 2734.023000, end 3406.278000
    Metadata:
      title           : Chapter 5
    Chapter #0:5: start 3406.278000, end 3916.413000
    Metadata:
      title           : Chapter 6
    Chapter #0:6: start 3916.413000, end 4276.147000
    Metadata:
      title           : Chapter 7
    Chapter #0:7: start 4276.147000, end 4561.807000
    Metadata:
      title           : Chapter 8
    Chapter #0:8: start 4561.807000, end 4929.925000
    Metadata:
      title           : Chapter 9
    Stream #0:0: Video: hevc (Rext), yuv444p10le(tv), 1920x816 [SAR 1:1 DAR 40:17], 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc (default)
    Metadata:
      BPS             : 2306552
      BPS-eng         : 2306552
      DURATION-eng    : 01:22:10.926000000
      NUMBER_OF_FRAMES: 118223
      NUMBER_OF_FRAMES-eng: 118223
      NUMBER_OF_BYTES : 1421679678
      NUMBER_OF_BYTES-eng: 1421679678
      _STATISTICS_WRITING_APP: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-07-12 20:47:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-07-12 20:47:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      ENCODER         : Lavc57.93.100 libx265
      DURATION        : 01:22:10.929000000
    Stream #0:1(jpn): Audio: vorbis, 48000 Hz, 5.1, fltp (default)
    Metadata:
      title           : Surround
      BPS             : 640000
      BPS-eng         : 640000
      DURATION-eng    : 01:22:10.912000000
      NUMBER_OF_FRAMES: 154091
      NUMBER_OF_FRAMES-eng: 154091
      NUMBER_OF_BYTES : 394472960
      NUMBER_OF_BYTES-eng: 394472960
      _STATISTICS_WRITING_APP: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-07-12 20:47:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-07-12 20:47:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      ENCODER         : Lavc57.93.100 libvorbis
      DURATION        : 01:22:10.931000000
    Stream #0:2(jpn): Audio: vorbis, 48000 Hz, 5.1, fltp
    Metadata:
      title           : Surround
      BPS             : 2900921
      BPS-eng         : 2900921
      DURATION-eng    : 01:22:10.848000000
      NUMBER_OF_FRAMES: 51363
      NUMBER_OF_FRAMES-eng: 51363
      NUMBER_OF_BYTES : 1788000653
      NUMBER_OF_BYTES-eng: 1788000653
      _STATISTICS_WRITING_APP: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-07-12 20:47:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-07-12 20:47:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      ENCODER         : Lavc57.93.100 libvorbis
      DURATION        : 01:22:10.872000000
    Stream #0:3(jpn): Audio: vorbis, 48000 Hz, stereo, fltp
    Metadata:
      title           : Stereo
      BPS             : 160036
      BPS-eng         : 160036
      DURATION-eng    : 01:22:10.922000000
      NUMBER_OF_FRAMES: 231137
      NUMBER_OF_FRAMES-eng: 231137
      NUMBER_OF_BYTES : 98640689
      NUMBER_OF_BYTES-eng: 98640689
      _STATISTICS_WRITING_APP: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-07-12 20:47:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-07-12 20:47:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      ENCODER         : Lavc57.93.100 libvorbis
      DURATION        : 01:22:10.925000000
    Stream #0:4(jpn): Audio: vorbis, 48000 Hz, 5.1, fltp
    Metadata:
      title           : Surround
      BPS             : 1509000
      BPS-eng         : 1509000
      DURATION-eng    : 01:22:10.912000000
      NUMBER_OF_FRAMES: 462273
      NUMBER_OF_FRAMES-eng: 462273
      NUMBER_OF_BYTES : 930093276
      NUMBER_OF_BYTES-eng: 930093276
      _STATISTICS_WRITING_APP: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-07-12 20:47:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-07-12 20:47:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      ENCODER         : Lavc57.93.100 libvorbis
      DURATION        : 01:22:10.936000000
    Stream #0:5: Subtitle: ass (default)
    Metadata:
      BPS             : 111
      BPS-eng         : 111
      DURATION-eng    : 01:19:27.330000000
      NUMBER_OF_FRAMES: 1132
      NUMBER_OF_FRAMES-eng: 1132
      NUMBER_OF_BYTES : 66729
      NUMBER_OF_BYTES-eng: 66729
      _STATISTICS_WRITING_APP: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v13.0.0 ('The Juggler') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-07-12 20:47:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-07-12 20:47:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      DURATION        : 01:19:40.833000000
    Stream #0:6: Attachment: ttf
    Metadata:
      filename        : Brown Fox_0.ttf
      mimetype        : application/x-truetype-font

My issues were also never resolved… actually found more 1080p HEVC encodes that didn‘t work…

I am fully aware that many encoders that use 1080p HEVC are non-Scene garbage encoders but somehow they work on a librelec box that I use as an alternative.

I sent Sam a link to a sample file once but nothing really happened/changed.

edit: it is also worth mentioning that I never had any issue with 4k HEVC encodes, all files I threw at the Vero4k played just fine.

edit2: for me the issue is currently a very minor one… though I expect more encodes in 1080p/HEVC/10bit… only because it is more efficient than 1080p/x264 and that it could save power users many TBs of space on their NAS… right now only very few encoders do those re-encodes but I expect alot more in the near future. Currently the chances are 50/50 that those encodes work on the Vero4k

Have you tried a clean reinstall of OSMC?
I only ask as this is a major update and 100% of my 1080p HEVC rips work perfectly and they are encoded in a variety of ways.

I have not tried a reinstall, however I have never done any major and only very little minor changes to the system. The problem always existed and just didn’t go away with the december update. I didn’t complain about this earlier as I was hoping the december update would change anything to this problem, which it didn’t. So I assume a complete reinstall also won’t change anything…

Can you run the file through MediaInfo? It may provide more information about your problematic file.
Sam