Color change on encoding

[Selur]

According to media info your source has no vui info:

Video Count : 393 Count of stream of this kind : 1 Kind of stream : Video Kind of stream : Video Stream identifier : 0 StreamOrder : 0 ID : 1 ID : 1 Unique ID : 1 Format : FFV1 Format : FFV1 Commercial name : FFV1 Format version : Version 3.4 Format settings, Slice count : 4 Format settings, Slice count : 4 slices per frame Codec ID : V_MS/VFW/FOURCC / FFV1 Codec ID/Url : http://ffdshow-tryout.sourceforge.net/ Duration : 658032.000000 Duration : 10 min 58 s Duration : 10 min 58 s 32 ms Duration : 10 min 58 s Duration : 00:10:58.032 Duration : 00:10:57:09 Duration : 00:10:58.032 (00:10:57:09) Bit rate mode : VBR Bit rate mode : Variable Bit rate : 129969013 Bit rate : 130 Mb/s Width : 1920 Width : 1 920 pixels Height : 1080 Height : 1 080 pixels Pixel aspect ratio : 1.000 Display aspect ratio : 1.778 Display aspect ratio : 16:9 Frame rate mode : CFR Frame rate mode : Constant Frame rate : 23.976 Frame rate : 23.976 (24000/1001) FPS FrameRate_Num : 24000 FrameRate_Den : 1001 Frame count : 15777 Color space : YUV Chroma subsampling : 4:2:0 Chroma subsampling : 4:2:0 Bit depth : 8 Bit depth : 8 bits Scan type : Progressive Scan type : Progressive Compression mode : Lossless Compression mode : Lossless Bits/(Pixel*Frame) : 2.614 Delay : 0 Delay : 00:00:00.000 Delay : 00:00:00:00 Delay : 00:00:00.000 (00:00:00:00) Delay, origin : Container Delay, origin : Container Stream size : 10690487944 Stream size : 9.96 GiB Stream size : 10 GiB Stream size : 10.0 GiB Stream size : 9.96 GiB Stream size : 9.956 GiB Writing library : FFV1 YUV 420 8-bit Writing library : FFV1 YUV 420 8-bit Default : Yes Default : Yes Forced : No Forced : No coder_type : Range Coder MaxSlicesCount : 4 ErrorDetectionType : Per slice

So Hybrid guesses the color matrix based on the resolution.
You can set the color matrix value of the mkv container under "Config->MKV tagging->VUI->Matroska advanced video signaling".

And when I close Hybrid I have this message :

This happens if you tell Hybrid to:
a. overwrite the defaults on closing
b. report changes to the config
So, to me, it looks like you asked for this.

Cu Selur

Ps.: Depending on what filtering you applied, color changes can also happen due to filtering.