Denoise / Enhance Yields Strange Mask and Blurring
One and only one image in my catalog looks bizarre after applying denoise under the Detail menu. A number of changes were applied (exposure, cropping, etc. — standard changes). Some were applied to a masked area as opposed to the whole image. When the denoise option is applied, the enhanced image is badly wrong. I cannot even describe it properly. I am including a sample image.
Work is being done on a 2023 M2 Macbook Pro running MacOS 15.1 (Sequoia), 96 GB RAM.
If I try similar changes to another image, I have no trouble, so I think I must have toggled on something for this image, but I have no idea what.

