Thanks for the guidance. I’ve submitted the report. Feedback ID: FB21014376 The package includes: ColorSyncProfileTest project Dummy LUT ICC profile Working matrix ICC profile Steps to reproduce Terminal output showing fallback ICC behavior Let me know if you need any additional diagnostics or system traces.

Hi, following up on this issue. The problem persists in macOS 26.1 and the system still loads fallback profiles instead of LUT ICC profiles. Is there any update on the engineering review? Feedback ID: FB21014376