quick selection tool not selecting

select the correct layer lol

It is very easy. Just click on sample all layers. I had the same problem but it got solved in under a secend

I had the same problem and discovered I had inverted the selection in the step prior. Photoshop was doing what I told it, but the inverse action of what I wanted. Quick fix: Just swap the - and + functions. Presto!

I had the exact same issue - while using the Quick Selection tool, the selection marquee disappeared as soon as I let go of the mouse button. If I clicked on the selection again, the marquee re-appeared as I held the mouse button, and it had the previous Quick Selection there - so the selection was still there, it just disappeared as soon as I let go of the mouse button.

In my case, I discovered this behavior while working on a simple file consisting of two layers. I was working on the top layer - the active layer. The *inactive* bottom layer was turned off (that is, the layer visibility [the eyeball icon] was unchecked in the Layers panel). After a few minutes of trying to figure it out, I activated the visibility of the 2nd layer. Voila! the selection marquee re-appeared, and the tool and the resulting selection marquee is behaving normally again.

This seems like new behavior to me - I am sure that in times past, I have successfully made a quick selection on a multilayered file with one or more of the inactive layers' visibility turned off.

Adobe, was this the result of some update, or some combination of keystrokes?

it seems you have a color background , try to lock the background , this should be your issue if you still have it

Check the tool option bar settings for what your sampling and othe options set