Inconsistency when re-editing Intersected Masks

macOS 27.0.1 / Photoshop 27.11 / ACR 18.7

This possibly dates back to when Intersecting Masks first came out.

It has been bothering me for a very long time.

To create an intersecting mask, you create two masks that intersect with one another.

And when adding the second mask, the default behavior of the brush is ADD, you press alt/opt to switch to SUBTRACT.

As long as you stay in ACR, nothing will go wrong.

But if you close and re-open ACR, and go to that very intersected mask, the default brush behavior of the second mask becomes SUBTRACT, and you have to hold alt/opt to ADD.

You find this bug only in ACR, not in LrC or LR.

Lightroom got the cursor indicators mixed up, though.