Canvas button with 2 functions onClick must be pressed twice for 2nd function? Will not disappear?

Alright, I've tried everything - I'm developing a VR app in Unity and have a canvas with a single button on it that I want to execute 2 functions from 2 separate scripts when clicked - I have 2 scripts, GameLogic and ViewSwap, housed under an empty within my game under the button under OnClick() I have added the 2 functions it should execute;

The first function is from GameLogic and resets the round in the game. EVERY time the button is clicked, this first GameLogic function executes no problem. The 2nd function is from ViewSwap and disables the canvas, as in makes the button invisible. Ideally, the button should disappear after being clicked. This is how I do this:

 public void advanceBtnHide()
     {
         round2.enabled = false;
     }

My problem is the button must be clicked TWICE for this second function disabling the canvas to execute, and when this happens the first function ends up being called twice (from being clicked twice). I need to know how to have BOTH functions execute on one click because the game gets screwed up when that first function is called twice due to the fact the second one (disabling/hiding the button) is not called.

Does it have to do with the functions being from 2 different scripts? I have tried referencing the canvas and just disabling it from the first function but have run into further trouble referencing/changing objects as public variables from 2 different scripts. Why is this happening?