ID 278553 - ARRIRAW read node "colorspace" default displays error for OCIO users

Problem summary
ARRIRAW read node 'colorspace' default displays error for OCIO users

Customer reported version
nuke.10.5v3

Customer reported platform
10.12

Steps to reproduce
1. Open Nuke
2. Press S in node graph to go to: Project Settings > Color > Set to OCIO > set OCIO config to custom > set custom OCIO config path to ACES 1.3 config file
- ACES 1.3 config available at: https://github.com/imageworks/OpenColorIO-Configs
3. Read in ARRIRAW footage (see comments for the footage used) 
Result:
Read2: /Users/chris/Downloads/footage/ALEXA XT/L001C028_140110_R6MS.0017994.ari: Invalid LUT selected: AlexaV3LogC

Workaround
Unknown. 

Reproduced by support
Can repro in:
Nuke 10.5v4 - OSX 10.11.6 - Centos6.9
Nuke 10.0v1 - OSX 10.11.6 - Centos 6.9 - Windows 10

No error in:
Nuke 9.0v9 - OSX 10.11.6 - Centos 6.9 - Windows 10
Nuke 8.0v9 - OSX 10.11.6

Expected behaviour
Expecting footage not to error stating LUT is invalid

Actual behaviour
Footage erred stating LUT is invalid