Hi, I was getting this error “Object reference not set to an instance of an object” and realized that it was because the methods called in the GetNextQuestion() method were being called in wrong order;
This is the CORRECT order;
You may want to check that!
EDIT: My SetButtonInteractable() method is the equivalent to SetButtonState()
My SetButtonSpritesToDefaultSprites() is the equivalent to SetDefaultButtonSprites()