Bug: ACR 18.5 preview color saturation does not match Photoshop 2026 beta 27.11 canvas preview on Windows 11
Environment: Photoshop 2026 Beta (27.11) Windows 11, NVIDIA GPU render only
Hardware calibrated custom ICC monitor profile.
Symptom: Colors look less saturated in Camera Raw18.5 dialog.
After click "Open Image" enter Photoshop, canvas preview is More saturated.
The exported image file is correct, same as in ACR.
What I have tried:
1. Windows: HDR & ACM auto‑color‑management OFF, unchecked "Use Windows display calibration" in colorcpl.
2. NVIDIA Studio driver installed, DDU clean reinstalled. Nvida Driver Version: 595.79/610.88 (both tried)
3. Photoshop GPU setting: Draw mode = Basic, disable GPU Composition & OpenCL. Problem still reproduces.
4. ACR performance GPU set to Limited.
5. Color space workflow options are consistent(sRGB).
6. Formal Photoshop 2026 beta(27.10) does NOT have this bug on same machine.
Workaround: Fully disable Photoshop GPU acceleration, preview becomes correct.
