ID 599611 - View Transform error when using attached OCIO 2.1 Config

Problem summary
View Transform error when using attached OCIO 2.1 Config
 
Customer reported version
Mari 7.1v2
 
Steps to reproduce

1. Launch Mari and open any project, such as the Example Project
    
2. Select File > Settings > Colorspace > OCIO Config > Custom and import the attached OCIO archive

 
Expected behaviour
Mari should be able to use this valid OCIO Config
 
Actual behaviour
The following error pops up, and the Canvas turns permanently black
 

Failed to build display filter due to the following error(s):

Data does not contain the expected number of entries
(got-208896 expected-69632)

This may cause differences in colors and it is strongly recommended that the error is corrected before proceeding.

 
Workaround
Unknown
 
Reproduced by support
This bug has been reproduced in:
Mari 7.1v2 - Rocky 9 - Windows 10
Mari 6.0v1 - Rocky 9 - Windows 10
 
Earliest version tested
Mari 6.0v1 - This feature (OCIO 2.1) did not exist before this version