Thank you very much for the help! That pointed me in the right direction.
I have run into another problem. My menu system seems to only flow through one way, and can't back track to the home menu. I'm not sure where the issue is in my Playmaker logic.
From my home screen I can enter the store, but from the store I can not use the home button to return back to home. I have tried using Activate/Deactivate Game Object in the On Click event, as well as tried Create/Destroy Game Object. The store menu clearly activates upon the store button click (the button text turned on, which normally I have been keeping off). But none of the buttons remain clickable, and it just remains in the start state forever.
Worst case scenario, I know I can just make my menus through the existing Playmaker GUI options (without the Ecosystem) but I am hoping to find a way to solve this problem using the uGUI Ecosystem pack.