Very serious bugs, hope you seriously, UI MASK script for android mobile phones - XIAOMI didn’t have any effect, there is no way to MASK. Has very many people reflect the problem, from 4.6 began to reflect, I want to know, why don’t you to solve?
There is a second important BUG, the BUG is in unity5.2.1.
When I create a new project, use the camera to use orthogonal, Canvas use camera to render Settings, and then close the project, to open will report a bunch of mistakes
Hope to be able to cause the official value, at present a lot of people are these problems, for you are all one year haven’t solve the problem of MASK script
Better pose your post as a question or log it using the Unity bug reporter in the editor, you will get more of a response that way.
The forums are not the best place to request issues to be fixed, if you have a query, then provide some background to what you are setting up and what you are seeing, then community members (or Unity staff) will offer to help if they can.
Also posting the same thin multiple times will not improve the chance anyone will look at your issue.