当在另一个画布上重叠一个具有collider2d对象时，Unity按钮单击不起作用

Question

I am developing a 2d game with Unity. I have a popup settings dialog and When Player clicked settings button it coming to screen on the other objects.

Game objects have got Collider2d component and If a button over an game object which has Collider2d compopnent, Button click action doesn't work.

I use different layers and canvas, and I set z index -20 and more but result is same button click doesn't work.

Here is screen shots;

Answer 1

The problem was not only about collider overlapping. First part of the problem was image and button overlapping.

I removed the raycast target for Image components in a grid.

But already I can't click button when overlap with a 2d collider.