MKV File Not Supported?

[gethubguy]

Tried to trim a MKV file I made in Handbrake. The error message I get is "this video format is not supported, maybe you can re-format the file first using ffmpeg"

Here's the log
Version 1.8.0
/Applications/LosslessCut.app/Contents/Resources/app.asar/renderer.js:237 Load /Users/UserName/Desktop/FileName.mkv
/Applications/LosslessCut.app/Contents/Resources/app.asar/ffmpeg.js:111 getFormat /Users/UserName/Desktop/FileName.mkv
/Applications/LosslessCut.app/Contents/Resources/app.asar/ffmpeg.js:119 formats matroska,webm
/Applications/LosslessCut.app/Contents/Resources/app.asar/ffmpeg.js:125 fileType detected format {"ext":"mkv","mime":"video/x-matroska"}
/Applications/LosslessCut.app/Contents/Resources/app.asar/renderer.js:418 DOMException: The element has no supported sources.

[mifi]

Can you provide a short version of the file? For me mkv files seem to be working.

[mifi]

See #68