added comment

src/essential.cs

@@ -8,6 +8,7 @@ public partial class essential : Node
     public override void _Input(InputEvent @event) 
     {
         //Checks if using Keyboard or controller and giving out current controller
+        //Issue: Consuming first input for some reason
         if (@event is InputEventKey || @event is InputEventMouseButton || currentController == "")
             currentController = "PC";
         if (@event is InputEventJoypadButton)