Problem summary:
"Setting knob values from validate is not supported" error occurs when Exporting MOV files using an ACES OCIO config in Nuke Studio/Hiero.
This error can also appear when Exporting MXF files.
Customer reported version:
Hiero 15.0v4
Customer reported platform:
Rocky 9
Steps to reproduce:
1) Launch Nuke Studio and create a new project.
2) Navigate to Project > Edit Settings > Color Management and change the project's OCIO config from nuke-default to one of the available ACES configs that ship with Nuke.
3) Import some media with File > Import File(s)..., and create a Sequence by dragging the footage to the Timeline Editor.
4) Right-click on the Clip and select the Export... option.
5) Create a copy of the Transcode Shots DPX Export Preset, and change the File Type to mov in the Content section:
6) Press the Export button and observe the error that occurs after the Transcode Task completes: Warning: Write_mov: Knob:colorspace. Setting knob values from validate is not supported and may cause unexpected behaviour.
Expected behavior:
No errors or warnings should occur when Transcoding footage to a MOV file.
Actual behavior:
When using an ACES OCIO config, the Write_mov: Knob:colorspace. Setting knob values from validate is not supported and may cause unexpected behaviour error appears after Exporting footage to any MOV codec. This also occurs if the Exported media is processed as Shots, Clips, or a Sequence.
Workaround:
No known workaround at this time
Reproduced by Support in:
Nuke Studio 15.0v4 - Windows 11, macOS 13 Ventura
Nuke Studio 15.0v1 - Windows 11
Nuke Studio 14.1v1 - Windows 11, macOS 13 Ventura - Regression
Unable to reproduce bug in:
Nuke Studio 14.0v6 - Windows 11, macOS 13 Ventura
Earliest version tested:
Nuke Studio 14.0v6 - This issue doesn't appear in this version and has regressed
