Not working on Android devices

[Wolar]

Describe the bug
When used on the built player (.apk) for Android device, the mask doesn't work at all.

To Reproduce
Steps to reproduce the behavior:

1. Import Unmask
2. Import Demo and build demo scene
3. Deploy to "any" Android device
4. Unmask is not working

Environment (please complete the following information):

• Platform: Android (tested on Nexus 5 with Android 6.0.1 and on Samsung Galaxy S10 with Android 9 I think)
• Unity: 2019.2.18
• UnmaskForUGUI: 1.1.3

Additional context
Add any other context, screenshots or gif animations about the bug here.

[Wolar]

It was issue on my side, I'm very sorry for bothering you. In case anyone else is having this issue, go check Player Settings -> Resolution and Presentation -> Uncheck "Disable Depth and Stencil"

No idea why it was disabled in my project but it's quite old project I have inherited so maybe someone have disabled it and of course masking (and unmasking) is using stencil buffer.