# 3 second video freeze at beginning of all converted MP4 to MKV

**URL:** https://discussion.mcebuddy2x.com/t/3-second-video-freeze-at-beginning-of-all-converted-mp4-to-mkv/5505
**Category:** General Support / Questions
**Created:** [July 16, 2024, 5:00pm UTC](https://discussion.mcebuddy2x.com/t/3-second-video-freeze-at-beginning-of-all-converted-mp4-to-mkv/5505 "2024-07-16T17:00:36Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![SystemIdleProcess](https://discussion.mcebuddy2x.com/user_avatar/discussion.mcebuddy2x.com/systemidleprocess/32/2560_2.png) [@SystemIdleProcess](https://discussion.mcebuddy2x.com/u/SystemIdleProcess)
#### Post date: [July 16, 2024, 5:00pm UTC](https://discussion.mcebuddy2x.com/t/3-second-video-freeze-at-beginning-of-all-converted-mp4-to-mkv/5505/1 "2024-07-16T17:00:36Z")

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I’m having an issue when I convert HEVC MP4 files to MKV using the below MKV Unprocessed profile. When I play the output file the video is frozen at the frame about 3 seconds in until the audio catches up. I’ve verified on both MPC and VLC. This does not happen on the original MP4 and if I do a `ffmpeg -i <inputMP4> -c copy <outputMKV>`.

Profile:

```auto
[MKV Unprocessed]
Description=No video processing, just changing the container to MKV.  
order=ffmpeg,copy
AllowAllCopyRemuxing=true
copy-ext=.ts
copy-remuxto=.mkv
copy-audiodelay=skip
ffmpeg-general=-threads 0 -v verbose
ffmpeg-video=-c:v copy -map 0:v -sn
ffmpeg-audio=-c:a copy -map 0:a
ffmpeg-audioac3=-c:a copy -map 0:a
ffmpeg-ext=.mkv
ffmpeg-audiodelay=skip
PreConversionCommercialRemover=true
FixedResolution=true
SkipCropping=true
AutoDeinterlace=false
DisableEncoderReordering=true
PreCustomCommandPath="C:\Program Files\PowerShell\7\pwsh.exe"
PreCustomCommandParameters="\\NAS\Video\Temp\Subtitle-CopyVerify.ps1" -SourcePath "%originalfilepath%" -SourceFileBaseName "%originalfilename%" -DestinationPath "%destinationpath%" -DestinationFileBaseName "%convertedfilename%"
PreCustomCommandPeriod=0
PreCustomCommandCritical=false
PreCustomCommandUiSession=false
PreCustomCommandUiSession=false
PreCustomCommandShowWindows=false
PreCustomCommandExitCodeCheck=false

```

The PrecustomCommand is only to ensure that the srt or vtt is valid based on extension and move it to destination location as I don’t need them processed in MCEBuddy.

[New Girl (2011) - S01E01 - Pilot.mp4-Orig-MKV-Stream\_Default-2024-07-15T20-47-37.log](https://discussion.mcebuddy2x.com/uploads/short-url/wcxGCNvntD6fcBxSLW9xt3KRdB9.log) (701.0 KB)

Will [upload sample](https://discussion.mcebuddy2x.com/t/5076) files when I get ftp to work.

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<div class="post-metadata">

### Author: ![darwinbrew4242](https://discussion.mcebuddy2x.com/letter_avatar_proxy/v4/letter/d/96bed5/32.png) [@darwinbrew4242](https://discussion.mcebuddy2x.com/u/darwinbrew4242)
#### Post date: [July 18, 2024, 3:29pm UTC](https://discussion.mcebuddy2x.com/t/3-second-video-freeze-at-beginning-of-all-converted-mp4-to-mkv/5505/2 "2024-07-18T15:29:08Z")

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I have had this issue for years. When MCEbuddy converts a file from mkv to mp4 there is a 3 or 4 second video delay the audio plays but the video is just frozen for the first 3 or 4 seconds. Never have gotten a resolution for this problem.

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<div class="post-metadata">

### Author: ![Goose](https://discussion.mcebuddy2x.com/letter_avatar_proxy/v4/letter/g/5f9b8f/32.png) [@Goose](https://discussion.mcebuddy2x.com/u/Goose)
#### Post date: [July 18, 2024, 4:57pm UTC](https://discussion.mcebuddy2x.com/t/3-second-video-freeze-at-beginning-of-all-converted-mp4-to-mkv/5505/3 "2024-07-18T16:57:31Z")

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Try checking the `Skip remuxing` option in the _Conversion task → Advanced options_

You can now [upload the original video](https://discussion.mcebuddy2x.com/t/5076), our server was down for maintenance

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<div class="post-metadata">

### Author: ![SystemIdleProcess](https://discussion.mcebuddy2x.com/user_avatar/discussion.mcebuddy2x.com/systemidleprocess/32/2560_2.png) [@SystemIdleProcess](https://discussion.mcebuddy2x.com/u/SystemIdleProcess)
#### Post date: [July 18, 2024, 5:13pm UTC](https://discussion.mcebuddy2x.com/t/3-second-video-freeze-at-beginning-of-all-converted-mp4-to-mkv/5505/4 "2024-07-18T17:13:44Z")

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> [@Goose](#):
>
> Try checking the `Skip remuxing` option in the _Conversion task → Advanced options_

That resolve it. Thank you