Color change on encoding

[Lipomo]

Without you sharing what you are actually doing with the source in Hybrid (debug output ?) I don't really know how to reproduce your problem.

I'm not on my PC right now, but that's really simple :

- I open the video
- I set FFV1 codec with default value
- MKV container
- AddStart queue
- The output video has different colors

I checked the encoding script in the vapoursynth tab and it seems that the source is detected as matrix 709 and then set as 709 for the output well. 

I could share you the debug file this evening if you don't found something in the meantime.