Color change on encoding

[Selur]

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.
Simply remuxing the file with Hybrid:

F:\Hybrid\64bit>MediaInfo.exe g:\color_change_099.mkv General Unique ID : 283324640147748610621348756177095046601 (0xD526574192ECD5480C1D8D725BCD35C9) Complete name : g:\color_change_099.mkv Format : Matroska Format version : Version 4 File size : 5.03 GiB Duration : 6 min 28 s Overall bit rate mode : Variable Overall bit rate : 111 Mb/s Frame rate : 23.976 FPS Encoded date : 2024-11-09 16:31:33 UTC Writing application : Blackmagic Design DaVinci Resolve Studio Writing library : Lavf58.45.100 ErrorDetectionType : Per level 1 Time code of first frame : 00:00:00:00 Time code source : Matroska tags Video ID : 1 Format : FFV1 Format version : Version 3.4 Format settings, Slice count : 4 slices per frame Codec ID : V_MS/VFW/FOURCC / FFV1 Duration : 6 min 28 s Bit rate mode : Variable Bit rate : 109 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Compression mode : Lossless Bits/(Pixel*Frame) : 2.194 Stream size : 4.93 GiB (98%) Writing library : FFV1 YUV 420 8-bit Default : Yes Forced : No Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 coder_type : Range Coder ErrorDetectionType : Per slice F:\Hybrid\64bit>MediaInfo.exe g:\color_change_099_remuxed.mkv General Unique ID : 32266779443871545638779280747641669775 (0x18465B0D73571B5615C86DC92C53888F) Complete name : g:\color_change_099_remuxed.mkv Format : Matroska Format version : Version 4 File size : 5.03 GiB Duration : 6 min 28 s Overall bit rate : 111 Mb/s Frame rate : 23.976 FPS Encoded date : 2024-11-11 04:21:23 UTC Writing application : mkvmerge v88.0 ('All I Know') 64-bit Writing library : libebml v1.4.5 + libmatroska v1.7.1 Encoding Gui : Hybrid 2024.11.10.1 Video ID : 1 Format : FFV1 Codec ID : V_MS/VFW/FOURCC / FFV1 Duration : 6 min 28 s Bit rate : 111 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Color space : YUV Compression mode : Lossless Bits/(Pixel*Frame) : 2.239 Stream size : 5.03 GiB (100%) Default : Yes Forced : Yes Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709

does not change the VUI meta data of the clip.

Cu Selur