ID 582984 - The Light Blend knob defaults to 1 instead of 100 when reading footage without the mxf/CameraMetadata/LEDWallColourTemperature metadata.

Problem summary
The Light Blend knob defaults to 1 instead of 100 when reading footage without the mxf/CameraMetadata/LEDWallColourTemperature metadata.
 
Customer reported version
Nuke 15.1v1
 
Customer reported platform
Windows 10
 
Steps to reproduce
1) Read in Sony MXF footage that does not include metadata for mxf/CameraMetadata/LEDWallColourTemperature
2) View the footage and observe the Properties bin for the ICVFX mode knobs: LED Wall Kelvin and Light Blend.
3) Set the Light Blend knob to 100 and observe any changes.
 
Expected behavior
The Light Blend knob should default to 100 (conventional lighting) when missing metadata for mxf/CameraMetadata/LEDWallColourTemperature, so the color matches that of the Linear Gain metadata (mxf/CameraUnitMetadata/WhiteBalance).
 
Actual behavior
The Light Blend knob defaults to 1 when there is no metadata for mxf/CameraMetadata/LEDWallColourTemperature. The default value of 3200 is used for the LED Wall Kelvin, causing a blue tint to the image. Setting the Light Blend value to 100 turns off the LED Wall Kelvin and corrects the issue.
 
Workaround
Manually setting the Light Blend knob to 100 allows the LED Wall Kelvin to be turned off and displays the correct color value of the Linear Gain knobs.
 
Reproduced by Support in:
Nuke 15.1v1 - Windows 10, Rocky 9 
 
Unable to reproduce bug in:
Nuke 15.0v4 - Windows 10, Rocky 9
 
Earliest version tested
Nuke 15.0v4 - This feature (ICVFX mode knobs) did not exist before this version