Buttons aren't working in WP8.1

I’m making a game to be published on Windows Phone.

I’ve used Unity 4.6 for my UI layout.

In unity, the buttons work fine, and when I first build the project and open it in VS, the buttons work fine.

As soon as I switch the build from 8.0 to 8.1, it throws of the alignment somehow. The buttons look like they are in the same place, but it registers the touch in a different part of the screen.

Has anyone else had this problem, I’m not sure how to find out what exactly is happening.

Never mind.

Switched Unity build to target Windows Store - Phone 8.1