ID 503741 - Erroring occurs with ACES1.2 when using the attached configuration file: "OCIO LookTransform error: empty destination color space name"

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Problem summary
Erroring occurs with ACES1.2 when using the attached configuration file: "OCIO LookTransform error: empty destination color space name"
 
Customer reported version
nuke.13.1v2
 
Customer reported platform
ubuntu
 
Steps to reproduce
1) Download the attached ocio.config file and place it in the ACES1.2 directory within Nuke. (Default path C:\Program Files\Nuke13.1v2\plugins\OCIOConfigs\configs\aces_1.2)
    - Alternatively, add a new look to an existing aces1.2 OCIO config with the following snippet (note the CDLTransform's values are all set to default): 
  - !<Look>    name: a    process_space: "b"    transform: !<GroupTransform>        children:            - !<CDLTransform> {slope: [1, 1, 1], offset: [0, 0, 0], power: [1.0,1.0,1.0]}
2) Launch Nuke and open the Project Settings > Color tab. (S on Node Graph)
3) Change the colorspace for aces_1.2, then observe the Viewer for any errors.
 

Relevant OCIO bug report: https://githubhot.com/repo/AcademySoftwareFoundation/OpenColorIO/issues/1423
 

v2.0.2 release: https://github.com/AcademySoftwareFoundation/OpenColorIO/releases/tag/v2.0.2
 
Expected behavior
The correct colorspace should be applied without error.
 
Actual behavior
The Viewer displays and error for: "OCIO LookTransform error: empty destination color space name"
 
Workaround
There is no available workaround at this time.
 
Reproduced by Support in:
Nuke 13.1v2 - Windows 10, CentOS 7
Nuke 13.1v1 - Windows 10, CentOS 7
 
Unable to reproduce bug in:
Nuke 13.0v6 - Windows 10, CentOS 7
 
Earliest version tested
Nuke 13.0v6 - This feature (aces_1.2) did not exist before this version
 

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