Buttons i have created with PlayMaker are not working once built?

I am creating a scene with PlayMaker and at one point of the scene i give the player a question with LDC which activates four buttons. When any of the four buttons are clicked a FSM triggers a Set Texture Offset to change the buttons to either have a tic or a cross to signal wrong and right once the right button is clicked, another LDC is activated. The problem is when i create a build the buttons appear but clicking them does nothing, like i never scripted anything to them just activated them. I have checked my PlayMaker and everything seems in order and the scene works perfectly in the Unity Editor. The link below is to a screenshot of my FSM and the correct button.

Imgur

SOLVED, i forgot to tag my buttons…