UIMask does not clip child objects with materials

I have a scroll view with a UI mask attached to it. And under the scroll rect are round profile images for each player. When I added the shader/ material to the profile image to make it round, it seems like that image no longer respects the scroll clipping pane with the UI mask.

I tried setting the render queue for the profile image. If I set it anything under 3000 (Transparent), the image is not rendered at all. And anything 3000 above, the profile image shown above everything.