AramG

Thank you, that helped me! I had that variable in the windows environment variables and it was getting ignored every time I restarted Houdini.

What directory did you change it to? I'm running into the exact same thing on Build 568 (of Houdini and Labs), changed my OCIO directory to "C:\Users\(user_name)\Documents\OpenColorIO-Configs-feature-aces-1.2-config\aces_1.2" and got the same error.