Version 12.5: masking ignored by some masking tool adjustments; only fixable by reverting to 12.4
In Lightroom 12.5: create a mask (for instance, mask the background as an AI mask). Some adjustments within the mask work properly as expected (noise, texture, sharpening). Other adjustments don't (exposure and saturation, for example) and are completely ignored by the mask - the entire image brightnes, darkens, changes saturation. (This isn't an attempt to create an exhaustive list, but these "are" examples of what's suddenly broken.)
Reverting back to 12.4 fixes this.
Apple Macbook Pro M1Max.
