title: Why does my UI Button works in editor but not in android after being built?
body: <p>I have an annoying problem with my project on Unity2D. I have created a shop GUI, with buttons to purchase hats.
  However, 4 out of the 6 hats buttons are working for some reason in the android build. Whereas for some reason all of them work in editor mode...
  They all are in the same Canvas.</p>
  
  <p>For some reason, I moved the button a little bit up, next to the seagull and they seem to be working when I do that. But I want them to work on my shop GUI like the other buttons :X
  I don't have anything transparent blocking the buttons by the way (And if I did, it would not work in editor mode as well, right?)</p>
  
  <p>I already tried to
  - Move from OnClick() to Event Trigger Pointer Down (no success)
  - Change Drag Thresold in the event manager.
  - Check Force Active in event manager.
  - Redoing the buttons that are not working from scratch...</p>
  
  <p>I'm really clueless, and I need your help!</p>
  
  <p>Some screenshots :</p>
  
  <p><strong>The Canvas containing my buttons</strong>
  <a href="https://i.stack.imgur.com/50OqJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/50OqJ.png" alt="The Canvas containing my buttons"></a></p>
  
  <p><strong>Green are working buttons, red are not working, and orange is selected (work in editor) see bottom right corner</strong>
  [<img src="https://i.stack.imgur.com/HI8Es.png" alt="Green are working buttons, red are not working, and orange is selected (work in editor) see bottom right corner"><a href="https://i.stack.imgur.com/HI8Es.png" rel="nofollow noreferrer">2</a></p>
  
  <p><a href="https://i.stack.imgur.com/u1yOn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/u1yOn.png" alt="The poop button which is not working"></a></p>