Area2D mouse entered signal does not work when the area2d is set as a child of a Canvas Layer node.
Created by: stubbsy345
Godot 3.0
When an aread2d node is placed as the child of a canvas layer or further down the node tree, then the mouse entered signal does not appear to work.
To reproduce simply set an area2d as a child of a canvas layer and try and get a signal from the area2d when the mouse enters the area.