Hi,
I have a modal background with a big collider to prevent pressing buttons. Then, I open a dialog with a uidrag scroll view over the modal. But, scrolling does not work. I think the problem is related with the depth of my background sprite. When I set its depth to 0 (zero) it works. If it's larger than zero it does not work. I have increased the scrollviews depth big enough, still doesn't work.