Preview Delta E not showing mask

Trying to use Local Adjustments. When I choose to alter colour and light, and press the preview Delta E button, I quite clearly see the mask. However, when I try to use one of the non-colour adjustments, eg blur and denoise, the image is still shown without any mask. I watched the Andy Astbury video on the topic, and I cannot see what I am missing.

I am using RT 5.9 on Windows 11.

Thanks for your help


I am not on my computer now, but as i remember, the info box say sth like delta E is only for color adjustments. For other masks you need to chose ‘advanced’ and use the mask of the individual tool.

Thanks for that. You are right,when I use the show mask function in the individual tool, it all works.