Problem with Mask

Unity Engine
1

Staff, the new UI Mask stopped working on my project, was operating normally with the Scroll Rect, but of nothing stopped working, I tried removing component, create a new scene, no use in this project, if I create a project new it works 100%, does anyone have idea what can this be?

  • Sorry for English
2

Make sure you don’t have the depth stencil buffer turned off, the mask uses that to work its magic.