Mac OS 10.15.7. Repeatable in SL 5.0.129 and 7.0.30.
When using the magic wand tool, clicking will sometimes do nothing.
It’s like there are mysterious dead areas that can’t be clicked with the wand, and there’s no rhyme or reason to when/where these dead areas occur. When I’m over one of these dead areas, no matter how many times I click nothing will happen. I have to move the cursor a few pixels in one direction or another and try again on a new spot.
If I’ve got an existing selection and I click on one of these dead areas with Replace Selection enabled, the previously selected area remains. So the click is being completely ignored.
Even stranger, the dead areas don’t prevent the to-be-selected spectrum data beneath the wand from being highlighted. So I’ll be hovering over a dead area and see the spectrum data light up (as expected) but when I click, the highlighted data doesn’t actually get selected. Nothing happens.