title: Normal Unity3d UI buttons aren't working with Vufuria
body: <p>I made an AR game using Vuforia and everything is working fine except none of my UI buttons work. Not just the code too, they don't show any change what so ever when hovered above or clicked. The Button script is set to intractable, the colours are set and different. I also followed the normal steps to adding buttons to a canvas and code to buttons, but nothing works. In another app that has nothing to do with Vuforia, the buttons work fine, but the one in my AR game don't respond at all. I tried different scenes, different rendering modes, and different layers, but nothing works.</p>
  
  <p>I'd really appreciate any help with this.</p>
  
  <p>To add further info on the project, it's an android application, it does a specific action when the screen is clicked so when ever I test the button, instead of clicking that button it just does the action it normally does when the screen is clicked.</p>