When adding material to any canvas button and building the game onto my Android device the button is no longer visible. However, when I run it on my computer I could see everything. This wasn’t always the case, just yesterday the buttons were visible when running it with material on my device. Now, the only way I can see the buttons on Android is if I remove the material. I know that it is not my Android device because I tried multiple devices and got the same outcome. I am using the Unity version 2018.2.2f1. I also tried downgrading to versions 2018.2.1f1 and 2018.1.6f1 but still nothing. Please help.
I haven’t been on Unity for quite some time but I do kinda remember that Materials do not go with UI
try colors or textures
a material is physical property