Lightroom Classic 11 and 12 Intersect Mask with Luminance Range Issues
I was using Lightroom Classic 10.?, with Windows 10 Home,
and recently upgraded to LR Classic 12.3. Now, when I create a mask using a Linear Gradient and itersect it with Luminance Range I get these weired artifacts (not sure what to call them - the edges of everything in the scene are all highlighted - see attached image) after tweaking the setting just a little. I have never seen this before in LR 10 and earlier, even when I pushed all of the levels as far as they would go. I tried several different versions of Lightroom 11 and 12 and get this issue with all of them. I would appreciate any help anyone could provide.

