Child Object Buttons Not Working

I have two images that work as buttons that do a simple make one active and disable the other. This all works just fine. However, to make it more interesting I wrote a simple script to flip the two buttons (it basically just changes the X value from 1 to -1 and also does the activation/deactivation). It all worked in my old Unity 4.6 version, but in the 2017.1 version, the buttons simply do not accept input. Even if I just disable everything to just be a color change, I get no reaction from the buttons IF the script is attached in any way to the parent object. I'm hoping someone can shed some light on this and help me out. Thanks in advance.