DJI mp4 files not viewable in 3.67

[gurahamu]

(I haven't filed an issue yet as there's some things I want to test, but just in case this is known scenario).

I use LosslessCut for cutting out huge chunks of less interesting actioncam footage, currently from my DJI Osmo Action 4.

Currently on my Linux Mint desktop with 3.67 for some reason files look black, and 'convert to supported format' doesn't seem to work. It all worked fine a few months ago, and as far as I know the camera hasn't been updated, and 3.68 isn't yet bundled for Mint. Any ideas?

`
2026-02-17T11:50:40.595Z info: LosslessCut version 3.67.0 { isDev: false }
2026-02-17T11:50:40.610Z info: Initialized config store
2026-02-17T11:50:40.611Z info: Waiting for app to become ready
2026-02-17T11:50:40.711Z info: CLI arguments { _: [], sandbox: false }
2026-02-17T11:50:40.887Z error: Failed to check github version getaddrinfo EAI_AGAIN api.github.com
2026-02-17T11:50:41.390Z info: ffmpeg -hide_banner -f lavfi -i 'nullsrc=s=256x256:d=1' -f null -
2026-02-17T11:53:02.151Z info: ffprobe -of json -show_chapters -show_format -show_entries stream -i '/home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4' -hide_banner
2026-02-17T11:53:02.182Z info: readFormatData /home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4
2026-02-17T11:53:02.182Z info: ffprobe -of json -show_format -i '/home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4' -hide_banner
2026-02-17T11:53:02.197Z info: ffmpeg -hide_banner -f lavfi -i 'anullsrc=channel_layout=stereo:sample_rate=44100' -t '10.88' -acodec flac -y '/home/xxxx/Downloads/export/DJI_20260131162231_0022_D-html5ified-dummy.mkv'
2026-02-17T11:53:02.280Z info: Starting preview process { videoStreamIndex: 0, audioStreamIndexes: [ 1 ], seekTo: 0 }
2026-02-17T11:53:02.280Z info: ffmpeg -hide_banner -loglevel error -fflags '+nobuffer+flush_packets+discardcorrupt' -avioflags direct -flush_packets 1 -ss 0 -i '/home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4' -fps_mode passthrough -map_metadata -1 -map_chapters -1 -filter_complex '[0:0]fps=30,scale=800:800:flags=lanczos:force_original_aspect_ratio=decrease:force_divisible_by=2:in_color_matrix=auto:in_range=auto:out_color_matrix=bt709:out_range=tv,format=yuv420p,setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709[video];[0:1]anull[audio]' -map '[video]' '-c:v' libx264 -preset ultrafast -tune zerolatency -crf 10 -g 1 -map '[audio]' -ac 2 '-c:a' aac '-b:a' 128k -f mp4 -movflags '+frag_keyframe+empty_moov+default_base_moof' -
2026-02-17T11:53:02.291Z warn: Command failed with exit code 8: /app/lossless-cut/resources/ffmpeg -hide_banner -loglevel error -fflags '+nobuffer+flush_packets+discardcorrupt' -avioflags direct -flush_packets 1 -ss 0 -i /home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4 -fps_mode passthrough -map_metadata -1 -map_chapters -1 -filter_complex '[0:0]fps=30,scale=800:800:flags=lanczos:force_original_aspect_ratio=decrease:force_divisible_by=2:in_color_matrix=auto:in_range=auto:out_color_matrix=bt709:out_range=tv,format=yuv420p,setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709[video];[0:1]anull[audio]' -map '[video]' '-c:v' libx264 -preset ultrafast -tune zerolatency -crf 10 -g 1 -map '[audio]' -ac 2 '-c:a' aac '-b:a' 128k -f mp4 -movflags '+frag_keyframe+empty_moov+default_base_moof' -
2026-02-17T11:53:02.291Z warn: Unrecognized option 'crf'.
Error splitting the argument list: Option not found

2026-02-17T11:53:25.452Z info: Aborting preview process { videoStreamIndex: 0, audioStreamIndexes: [ 1 ], seekTo: 0 }
2026-02-17T11:53:42.246Z info: readFormatData /home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4
2026-02-17T11:53:42.247Z info: ffprobe -of json -show_format -i '/home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4' -hide_banner
2026-02-17T11:53:42.268Z info: ffmpeg -hide_banner -f lavfi -i 'anullsrc=channel_layout=stereo:sample_rate=44100' -t '10.88' -acodec flac -y '/home/xxxx/Downloads/export/DJI_20260131162231_0022_D-html5ified-dummy.mkv'
2026-02-17T11:53:42.321Z info: Starting preview process { videoStreamIndex: 0, audioStreamIndexes: [ 1 ], seekTo: 0 }
2026-02-17T11:53:42.322Z info: ffmpeg -hide_banner -loglevel error -fflags '+nobuffer+flush_packets+discardcorrupt' -avioflags direct -flush_packets 1 -ss 0 -i '/home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4' -fps_mode passthrough -map_metadata -1 -map_chapters -1 -filter_complex '[0:0]fps=30,scale=800:800:flags=lanczos:force_original_aspect_ratio=decrease:force_divisible_by=2:in_color_matrix=auto:in_range=auto:out_color_matrix=bt709:out_range=tv,format=yuv420p,setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709[video];[0:1]anull[audio]' -map '[video]' '-c:v' libx264 -preset ultrafast -tune zerolatency -crf 10 -g 1 -map '[audio]' -ac 2 '-c:a' aac '-b:a' 128k -f mp4 -movflags '+frag_keyframe+empty_moov+default_base_moof' -
2026-02-17T11:53:42.332Z warn: Command failed with exit code 8: /app/lossless-cut/resources/ffmpeg -hide_banner -loglevel error -fflags '+nobuffer+flush_packets+discardcorrupt' -avioflags direct -flush_packets 1 -ss 0 -i /home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4 -fps_mode passthrough -map_metadata -1 -map_chapters -1 -filter_complex '[0:0]fps=30,scale=800:800:flags=lanczos:force_original_aspect_ratio=decrease:force_divisible_by=2:in_color_matrix=auto:in_range=auto:out_color_matrix=bt709:out_range=tv,format=yuv420p,setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709[video];[0:1]anull[audio]' -map '[video]' '-c:v' libx264 -preset ultrafast -tune zerolatency -crf 10 -g 1 -map '[audio]' -ac 2 '-c:a' aac '-b:a' 128k -f mp4 -movflags '+frag_keyframe+empty_moov+default_base_moof' -
2026-02-17T11:53:42.332Z warn: Unrecognized option 'crf'.
Error splitting the argument list: Option not found

2026-02-17T12:03:15.704Z info: LosslessCut version 3.67.0 { isDev: false }
2026-02-17T12:03:15.720Z info: Initialized config store
2026-02-17T12:03:15.721Z info: Waiting for app to become ready
2026-02-17T12:03:15.773Z info: CLI arguments { _: [], sandbox: false }
2026-02-17T12:03:15.866Z error: Failed to check github version getaddrinfo EAI_AGAIN api.github.com
2026-02-17T12:03:16.484Z info: ffmpeg -hide_banner -f lavfi -i 'nullsrc=s=256x256:d=1' -f null -
2026-02-17T12:03:21.638Z info: ffprobe -of json -show_chapters -show_format -show_entries stream -i '/home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4' -hide_banner
2026-02-17T12:03:21.708Z info: Starting preview process { videoStreamIndex: 0, audioStreamIndexes: [ 1 ], seekTo: 0 }
2026-02-17T12:03:21.708Z info: ffmpeg -hide_banner -loglevel error -fflags '+nobuffer+flush_packets+discardcorrupt' -avioflags direct -flush_packets 1 -ss 0 -i '/home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4' -fps_mode passthrough -map_metadata -1 -map_chapters -1 -filter_complex '[0:0]fps=30,scale=800:800:flags=lanczos:force_original_aspect_ratio=decrease:force_divisible_by=2:in_color_matrix=auto:in_range=auto:out_color_matrix=bt709:out_range=tv,format=yuv420p,setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709[video];[0:1]anull[audio]' -map '[video]' '-c:v' libx264 -preset ultrafast -tune zerolatency -crf 10 -g 1 -map '[audio]' -ac 2 '-c:a' aac '-b:a' 128k -f mp4 -movflags '+frag_keyframe+empty_moov+default_base_moof' -
2026-02-17T12:03:21.720Z warn: Command failed with exit code 8: /app/lossless-cut/resources/ffmpeg -hide_banner -loglevel error -fflags '+nobuffer+flush_packets+discardcorrupt' -avioflags direct -flush_packets 1 -ss 0 -i /home/xxxx/Downloads/losslesscut_media/DJI_20260131162231_0022_D.MP4 -fps_mode passthrough -map_metadata -1 -map_chapters -1 -filter_complex '[0:0]fps=30,scale=800:800:flags=lanczos:force_original_aspect_ratio=decrease:force_divisible_by=2:in_color_matrix=auto:in_range=auto:out_color_matrix=bt709:out_range=tv,format=yuv420p,setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709[video];[0:1]anull[audio]' -map '[video]' '-c:v' libx264 -preset ultrafast -tune zerolatency -crf 10 -g 1 -map '[audio]' -ac 2 '-c:a' aac '-b:a' 128k -f mp4 -movflags '+frag_keyframe+empty_moov+default_base_moof' -
2026-02-17T12:03:21.720Z warn: Unrecognized option 'crf'.
Error splitting the argument list: Option not found`

[mifi]

If you downgrade LosslessCut it works again on which version?

[mifi]

Also which version of ffmpeg are you running? it looks like there's something wrong with it, it might not support the -crf flag